Answer:
Joseph Kenyatta, a leader of the African Union, continued the mission of the Mau Mau rebellion seeking independence from British native exploitation
Explanation:
Given that the highlighted country is Kenya, and it is well known that Kenya, got her independence around 1964, and one of his major agitators for Kenya's independence was Joseph Kenyatta.
Hence, in this case, the correct answer is that the driving force behind the highlighted country's independence in 1964 is "Joseph Kenyatta, a leader of the African Union, continued the mission of the Mau Mau rebellion seeking independence from British native exploitation."