Question: Which prefecture-level city encompasses the Loujiang urban districts, Shanwei or Quanzhou?

Context paragraphs:
Hui'an County:    () is a county under the jurisdiction of the prefecture-level city of Quanzhou, Fujian, People's Republic of China.  It is situated in the middle of the Fujian coast, between Quanzhou and Meizhou Bay.  The county has a population of 921,794, as of late 2003, with a non-agricultural population of 289,396 people.  The dialect is Hui'an dialect, related to Hokkien.

Chendai, Quanzhou: Chendai () is a town within Jinjiang county-level city, Quanzhou prefecture-level city of China's Fujian Province.  It is located a few miles south of Quanzhou central city, and just north of Quanzhou Jinjiang Airport.

Quanzhou Jinjiang International Airport: Quanzhou Jinjiang International Airport (IATA: JJN, ICAO: ZSQZ) is a dual-use military and public airport serving the city of Quanzhou in Fujian Province, China.  It is located 12 kilometers south of the city center, in the county-level city of Jinjiang, which is under the administration of the prefecture-level city of Quanzhou.

Shantou: Shantou, formerly romanized as Swatow and sometimes known as Santow, is a prefecture-level city on the eastern coast of Guangdong, China, with a total population of 5,391,028 as of 2010 and an administrative area of 2064 km2 .  Shantou has direct jurisdiction over six districts and one county, and the six urban districts of Shantou have a population of 5,330,764.  With it and the surrounding cities of Jieyang and Chaozhou, the metropolitan region known as Chaoshan covers an area of 10404 km2 , and had a permanent population of 13,937,897 at the end of 2010.  Its built up area spread of 11 districts was home to 11,635,577 inhabitants at the 2010 census.

Changde: Changde () is a prefecture-level city in the northwest of Hunan province, People's Republic of China, with a population of 5,717,218 as of the 2010 census, of which 1,232,182 reside in the urban districts of Dingcheng and Wuling.  In addition to the urban districts, Changde also administers the county-level city of Jinshi and six counties.  Changde is adjacent to Dongting Lake to the east, the city of Yiyang to the south, Wuling and Xuefeng Mountains to the west, and Hubei province to the north.

Huangshan City: Huangshan (), is a prefecture-level city in southern Anhui province, People's Republic of China.  Huangshan means "Yellow Mountain" in Chinese and the city is named after the famously scenic Yellow Mountains which cover much of the city's vast geographic expanse.  The prefectural city of Huangshan includes three urban districts and four counties.  The urban center of Huangshan was originally the city of Tunxi, and is now called Tunxi District.  Locals still call the city Tunxi to distinguish urban core from other parts of Huangshan.

Jinjiang, Fujian: Jinjiang () is a county-level city of Quanzhou City, Fujian Province, China.  It is located in the southeastern part of the province, on the right or south bank of the Jin River, across from Quanzhou's urban district of Fengze.  Jinjiang also borders the Taiwan Strait of the East China Sea to the south, and Quanzhou's other county-cities of Shishi and Nan'an to the east and west, respectively.  It has an area of 721.7 km2 and a population of 1,986,447 as of 2010.

Mianyang: Mianyang () is the second largest prefecture-level city of Sichuan province in Southwest China.  Its population was 5.45 million in 2015 covering an area of 20281 km² consisting of Jiangyou, a county-level city, six counties and two urban districts.  Its built-up ("or metro") area was home to 1,722,133 inhabitants including the city proper of Mianyang ("two urban districts") and An County largely being conurbated as urbanisation sprawls.  In 2006, Mianyang was ranked as China's third "most suitable city for living" by "China Daily", after coastal cities Dalian and Xiamen. , but it has since dropped out of the top 10.

Quanzhou: Quanzhou, formerly known as Chinchew, is a prefecture-level city beside the Taiwan Strait in Fujian Province, China.  Its is Fujian's largest metropolitan region, with an area of 11,245 km2 and, as of the 2010 census, a population of 8,128,530.  Its built-up area is home to 6,107,475 inhabitants, encompassing the Licheng, Fengze, and Luojiang urban districts; Jinjiang, Nan'an, and Shishi cities; Hui'an County; and the Quanzhou District for Taiwanese Investment.  Quanzhou was China's 12th-largest extended metropolitan area in 2010.

Shanwei: Shànwěi (), or Swabue, is a prefecture-level city in eastern Guangdong province, People's Republic of China.  It borders Jieyang to the east, Meizhou and Heyuan to the north, Huizhou to the west, and looks out to the South China Sea to the south.  It lies approximately 120 km east of Shenzhen and the locals speak the Haifeng dialect.

Supporting paragraphs: Shanwei Quanzhou
Answer: Quanzhou