Question: Mpulungu District is in a country located in which part of Africa ?
Context: Botswana is a landlocked country located in Southern Africa, north of South Africa.  Botswana occupies an area of 581730 km2 , of which 566730 km2 are land.  Botswana has land boundaries of combined length 4347.15 km , of which the constituent boundaries are shared with Namibia, for 1544 km ; South Africa 1969 km ; Zimbabwe, 834 km and Zambia, 0.15 km .  Much of the population of Botswana is concentrated in the eastern part of the country. Spain is a country located in southwestern Europe occupying most (about 85 percent) of the Iberian Peninsula and includes a small exclave inside France called Llívia as well as the Balearic Islands in the Mediterranean, the Canary Islands in the Atlantic Ocean 108 km off northwest Africa, and five places of sovereignty ("plazas de soberanía") on and off the coast of North Africa: Ceuta, Melilla, Islas Chafarinas, Peñón de Alhucemas, and Peñón de Vélez de la Gomera. Zambia ( ), officially the Republic of Zambia, is a landlocked country in Southern Africa, neighbouring the Democratic Republic of the Congo to the north, Tanzania to the north-east, Malawi to the east, Mozambique, Zimbabwe, Botswana and Namibia to the south, and Angola to the west.  The capital city is Lusaka, in the south-central part of Zambia.  The population is concentrated mainly around Lusaka in the south and the Copperbelt Province to the northwest, the core economic hubs of the country. Zimbabwe ( ), officially the Republic of Zimbabwe, is a landlocked country located in southern Africa, between the Zambezi and Limpopo Rivers.  It is bordered by South Africa to the south, Botswana to the west and southwest, Zambia to the northwest, and Mozambique to the east and northeast.  Although it does not border Namibia, less than 200 metres of the Zambezi River separates it from that country.  The capital and largest city is Harare.  A country of roughly 16 million people, Zimbabwe has 16 official languages, with English, Shona, and Ndebele the most commonly used. Mpulungu District is a district of Zambia, located in Northern Province.  The capital lies at Mpulungu.  As of the 2000 Zambian Census, the district had a population of 67,602 people. Ethiopia is a landlocked sovereign country located in the Horn of Africa.  Ethiopia is bordered by Eritrea to the north, Sudan to the west, South Sudan to the south-west, Kenya to the south, Somalia to the east and Djibouti to the north-east.  Ethiopia is one of the oldest countries in the world and Africa's second-most populous nation.  Ethiopia has yielded some of humanity's oldest traces, making the area important in the history of human evolution.  Recent studies claim that the vicinity of present-day Addis Ababa was the point from which human beings migrated around the world.  Ethiopian dynastic history traditionally began with the reign of Emperor Menelik I in 1000 BC.  The roots of the Ethiopian state are similarly deep, dating with unbroken continuity to at least the Aksumite Empire (which adopted the name "Ethiopia" in the 4th century) and its predecessor state, D`mt (with early 1st millennium BC roots).  After a period of decentralized power in the 18th and early 19th centuries known as the Zemene Mesafint ("Era of the Judges/Princes"), the country was reunited in 1855 by Kassa Hailu, who became Emperor Tewodros II, beginning Ethiopia's modern history.  Ethiopia's borders underwent significant territorial expansion to its modern borders for the rest of the century, especially by Emperor Menelik II and Ras Gobena, culminating in its victory over the Italians at the Battle of Adwa in 1896 with the military leadership of Ras Makonnen, and ensuring its sovereignty and freedom from colonization.  It was brutally occupied by Benito Mussolini's Fascist Italy from 1936 to 1941, ending with its liberation by British Empire and Ethiopian Patriot forces. Mbala is Zambia’s most northerly large town and seat of Mbala District, occupying a strategic location close to the border with Tanzania and controlling the southern approaches to Lake Tanganyika, 40 km by road to the north-west, where the port of Mpulungu is located.  It had a population of about 20,000 in 2006.  Under the name Abercorn, Mbala was a key outpost in British colonial control of this part of south-central Africa.  It is headquarters of an administrative district of the Northern Province. The Democratic Republic of the Congo ( ; ] ; French: "République démocratique du Congo" ), also known as Zaire, DR Congo, East Congo, DRC, DROC, Congo-Kinshasa or simply the Congo, is a country located in Central Africa.  The DRC borders the Central African Republic and South Sudan to the north; Uganda, Rwanda, Burundi and Tanzania to the east; Zambia and Angola to the south; the Republic of the Congo to the west and the Atlantic Ocean to the southwest.  It is the second-largest country in Africa (largest in Sub-Saharan Africa) by area and eleventh largest in the world.  With a population of over 80 million, the Democratic Republic of the Congo is the most populated officially Francophone country, the fourth most-populated nation in Africa and the seventeenth most populated country in the world. Lesotho is a mountainous, landlocked country located in Southern Africa.  It is an enclave, surrounded by South Africa.  The total length of the country's borders is 909 km .  Lesotho covers an area of around 30355 km2 , of which a negligible percentage is covered with water. The Republic of Rwanda is a small landlocked sovereign country located in the Great Lakes region of east-central Africa, bordered by Uganda, Burundi, the Democratic Republic of the Congo and Tanzania.  Home to approximately 10.1 million people, Rwanda supports the densest population in continental Africa, with most of the population engaged in subsistence agriculture.  A verdant country of fertile and hilly terrain, the small republic bears the title "Land of a Thousand Hills".  The country attracted international concern for the infamous Rwandan Genocide of 1994.
Answer: Southern Africa