Explanation:

The History of Malawi covers the area of present-day Malawi. The region was once part of the Maravi Empire. In colonial times, the territory was ruled by the British, under whose control it was known first as British Central Africa and later Nyasaland. It became part of the Federation of Rhodesia and Nyasaland. The country achieved full independence, as Malawi, in 1964. After independence, Malawi was ruled as a one-party state under Hastings Banda until 1994. Hence option 4th is correct.