Please answer the following question: Information: - Southern and Eastern Norway Regional Health Authority is the largest of the four Regional health authorities in Norway. It covers the counties of Akershus, Aust-Agder, Buskerud, Hedmark, Oppland, Oslo, Telemark, Vest-Agder, Vestfold and stfold. The authority owns fifteen health trusts that operate the hospitals as well as Southern and Eastern Norway Pharmaceutical Trust that operates nineteen pharmacies. - Vestfold is a county in Norway, bordering Buskerud and Telemark. The county administration is in Tnsberg, and the largest city is Sandefjord. With the exception of Oslo county, Vestfold is the smallest county in Norway by area. - Christian IV (12 April 1577 28 February 1648), sometimes colloquially referred to as Christian Firtal in Denmark and Christian Kvart or Quart in Norway, was king of Denmark-Norway and Duke of Holstein and Schleswig from 1588 to 1648. His 59-year reign is the longest of Danish monarchs, and of Scandinavian monarchies. - Southern and Eastern Norway Pharmaceutical Trust is a health trust owned by Southern and Eastern Norway Regional Health Authority that operates nineteen hospital pharmacies. The pharmacies are part of the Ditt Apotek chain and use Norsk Medisinaldepot as wholesaler. - stfold is a county in southeastern Norway, bordering Akershus and southwestern Sweden (Vastra Gotaland County and Varmland), while Buskerud and Vestfold are on the other side of Oslofjord. The county's administrative seat is Sarpsborg. - Sarpsborg , historically Borg, is a city and municipality in stfold county, Norway. The administrative centre of the municipality is the city of Sarpsborg. - Telemark is a county in Norway, bordering Vestfold, Buskerud, Hordaland, Rogaland and Aust-Agder. The county administration is in Skien. Until 1919 the county was known as "Bratsberg amt". - Hedmark is a county in Norway, bordering Sr-Trndelag to the north, Oppland to the west and Akershus to the south. The county administration is in Hamar. - Sogn og Fjordane (Sogn and Fjordane) is a county in western Norway, bordering Mre og Romsdal, Oppland, Buskerud, and Hordaland. The county administration is in the village of Hermansverk in Leikanger municipality. The largest town in the county is Frde. - History. The introduction of self-government in rural districts was a major political change. The Norwegian farm culture ("bondekultur") that emerged came to serve as a symbol of nationalistic resistance to the forced union with Sweden. The legislation of 1837 gave both the towns and the rural areas the same institutions: a minor change for the town, but a major advance for the rural communities. The significance of this legislation is hailed by a nationalistic historian, Ernst Sars: - Southern Norway Regional Health Authority is a defunct regional health authority that covered the counties of Aust-Agder, Buskerud, Telemark, Vest-Agder and Vestfold in Norway, as well as the national hospitals in Oslo. The authority was founded on January 1, 2002, but merged with Eastern Norway Regional Health Authority to form Southern and Eastern Norway Regional Health Authority on June 1, 2007. - Vest-Agder "(West Agder)" is a county in Norway, bordering Rogaland to the west and Aust-Agder to the east. In 2002 there were 157,851 inhabitants, which is 3.4% of the total population in Norway. Its area is . The county administration, and largest city is Kristiansand. - Oppland is a county in Norway, bordering Sr-Trndelag, Mre og Romsdal, Sogn og Fjordane, Buskerud, Akershus, Oslo and Hedmark. The county administration is in Lillehammer. Oppland is, together with Hedmark, one of the only two landlocked counties of Norway. - Harald Sigurdsson (Old Norse: "Haraldr Sigurarson"; c. 1015 25 September 1066), given the epithet Hardrada ("harrai", roughly translated as "stern counsel" or "hard ruler") in the sagas, was King of Norway (as Harald III) from 1046 to 1066. In addition, he unsuccessfully claimed the Danish throne until 1064 and the English throne in 1066. Prior to becoming king, Harald had spent around fifteen years in exile as a mercenary and military commander in Kievan Rus' and of the Varangian Guard in the Byzantine Empire. - Norway (; Norwegian: (Bokmal) or (Nynorsk); Sami: "Norgga"), officially the Kingdom of Norway, is a sovereign and unitary monarchy whose territory comprises the western portion of the Scandinavian Peninsula plus the island Jan Mayen and the archipelago of Svalbard. The Antarctic Peter I Island and the sub-Antarctic Bouvet Island are dependent territories and thus not considered part of the Kingdom. Norway also lays claim to a section of Antarctica known as Queen Maud Land. Until 1814, the Kingdom included the Faroe Islands (since 1035), Greenland (1261), and Iceland (1262). It also included Shetland and Orkney until 1468. It also included the following provinces, now in Sweden: Jamtland, Harjedalen and Bohuslan. - The Oslofjord is an inlet in the south-east of Norway, stretching from an imaginary line between the Torbjrnskjr and Frder lighthouses and down to Langesund in the south to Oslo in the north. It is part of the Skagerrak strait, connecting the North Sea and the Kattegat sea area, which leads to the Baltic Sea. The Oslofjord is not a fjord in the geological sense - in Norwegian the term "fjord" can refer to a wide range of waterways. The bay is divided into the inner ("indre") and outer ("ytre") Oslofjord at the point of the Drbak Sound. - Akershus Fortress or Akershus Castle is a medieval castle that was built to protect Oslo, the capital of Norway. It has also been used as a prison. - Sweden, officially the Kingdom of Sweden (Swedish: ), is a Scandinavian country in Northern Europe. It borders Norway to the west and Finland to the east, and is connected to Denmark in the southwest by a bridge-tunnel across the Oresund. At , Sweden is the third-largest country in the European Union by area, with a total population of 10.0 million. Sweden consequently has a low population density of , with the highest concentration in the southern half of the country. Approximately 85% of the population lives in urban areas. - Hamar is a town and municipality in Hedmark county, Norway. It is part of the traditional region of Hedmarken. The administrative centre of the municipality is the town of Hamar. The municipality of Hamar was separated from Vang as a town and municipality of its own in 1849. Vang was merged back into Hamar on 1 January 1992. - A personal union is the combination of two or more states that have the same monarch while their boundaries, laws, and interests remain distinct. It differs from a federation in that each constituent state has an independent government, whereas a unitary state is united by a central government. The ruler in a personal union does not need to be a hereditary monarch. - Akershus is a county in Norway, bordering Hedmark, Oppland, Buskerud, Oslo, and stfold; it also has a short border with Sweden (Varmland). Akershus, with more than half a million inhabitants, is the second-largest county by population after Oslo. The county is named after Akershus Fortress. The county administration is in Oslo, which is not part of the county "per se". - Oslo is the capital and the most populous city in Norway. It constitutes both a county and a municipality. Founded in the year 1040, and established as a "kaupstad" or trading place in 1048 by Harald Hardrada, the city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 and with Sweden from 1814 to 1905 reduced its influence. After being destroyed by a fire in 1624, the city was moved closer to Akershus Fortress during the reign of Christian IV of Denmark and renamed Christiania in his honour. It was established as a municipality ("formannskapsdistrikt") on 1 January 1838. Following a spelling reform, it was known as Kristiania from 1877 to 1925, at which time its original Norwegian name was restored. - Sr-Trndelag is a county comprising the southern portion of the Trndelag region in Norway, bordering Nord-Trndelag, Mre og Romsdal, Oppland and Hedmark. To the west is the Norwegian Sea (Atlantic Ocean), and to the east is Jamtland in Sweden. The county is separated into a northern and southern part by the Trondheimsfjord. Slightly over 200,000 of the county's population (or around 55%) lives in Trondheim and its suburbs. The Norwegian dialect of the region is Trndersk. - Health trust or HF is a health enterprise owned by one of the four regional health authorities in Norway, with responsibility for performing a geographic and/or specialist activities of operations on behalf of the regional health authority. There are 43 HFs in Norway, each led by a board of directors appointed by the authority. Most HFs are responsible for one or more hospitals, though some are solely responsible for pharmacies. The trusts are regulated by the "Health Trust Act" of 15 June 2001. - Vastra Gotaland County is a county or "lan" on the western coast of Sweden. - Buskerud is a county in Norway, bordering Akershus, Oslo, Oppland, Sogn og Fjordane, Hordaland, Telemark and Vestfold. The county extends from the Oslofjord and Drammensfjorden in the southeast to Hardangervidda mountain range in the northwest. The county administration is located in Drammen. Etymology. The county is named after the old manor Buskerud (Old Norse: "Biskupsru") located on the west side of the Drammen River in Amot, Modum municipality. The first element is the genitive case of "biskup" m 'bishop' (referring to the Bishop of Hamar), the last element is "ru" n 'clearing, farm'. The farm was one of the largest in Buskerud, and the original name of the farm (before it became a benefice) was probably "Modum". At the time of the Reformation (ca. 153639) the farm became property of the Crown at which time the farm then served as the residence of the king's bailiffs until 1668. - Lillehammer is a town and municipality in Oppland county, Norway. It is part of the traditional region of Gudbrandsdal. The administrative centre of the municipality is the town of Lillehammer. As of May 2011, the population of the town of Lillehammer was 26,639. The city centre is a late 19th-century concentration of wooden houses, which enjoys a picturesque location overlooking the northern part of lake Mjsa and the river Lagen, surrounded by mountains. Lillehammer hosted the 1994 Winter Olympics and 2016 Winter Youth Olympics. Before Oslo's withdrawal from consideration, it was included as part of a bid to host events in the 2022 Winter Olympics if Oslo were to win the rights to hold the Games. - Mre og Romsdal (Mre and Romsdal) is a county in the northernmost part of Western Norway. It borders the counties of Sr-Trndelag, Oppland and Sogn og Fjordane. The county administration is located in the city of Molde, while Alesund is the largest city. The county is governed by the Mre og Romsdal County Municipality which includes an elected county council and a county mayor. The national government is represented by the county governor (currently Lodve Solholm). - Eastern Norway Regional Health Authority ( Norwegian : Helse Sr RHF ) is a defunct regional health authority that covered the counties of Akershus , Hedmark , Oppland , Oslo and stfold . The authority was founded on January 1 , 2002 , but merged with Southern Norway Regional Health Authority to form Southern and Eastern Norway Regional Health Authority on June 1 , 2007 . The eight health trusts owned by the authority were Aker University Hospital , Akershus University Hospital , Asker and Brum Hospital Trust , stfold Hospital Trust , Innlandet Hospital Trust , Sunnaas Hospital , Ulleval University Hospital . It also owned part of Southern and Eastern Norway Pharmaceutical Trust . - Administration. Provinces serve no administrative function in Sweden today. Instead, that function is served by counties; however, in many instances a county has virtually the same border as the province, which is the case with Varmland and its corresponding county Varmland County. The main exception is a smaller part to the southeast which belongs to Orebro County. - Haakon V Magnusson (10 April 1270 - 8 May 1319) (Old Norse: "Hakon Magnusson"; Norwegian: "Hakon Magnusson") was king of Norway from 1299 until 1319. - Aust-Agder "(East Agder)" is a county "(fylke)" in Norway, bordering Telemark, Rogaland, and Vest-Agder. In 2002, there were 102,945 inhabitants, which is 2.2% of the total population in Norway. Its area is . The administrative center of the county is in Arendal. After reading the paragraphs above, choose the best answer for the entity that related to 'eastern norway regional health authority' with the relationship of 'headquarters location'. Choices: - arendal - central - denmark - drammen - enterprise - faroe islands - hamar - hard - iceland - lillehammer - molde - norway - oslo - sarpsborg - skien - sweden
A:
hamar