You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
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Question: Category: AFRICA 
Clue: In the 1980s the U.S.-backed FNLA & UNITA battled the Cuban-backed MPLA for control of this country

Answer: angola


Question: Category: CALIFORNIA HISTORY 
Clue: Surname of the employer of James W. Marshall, who found gold in a stream near the Sacramento river in 1848

Answer: sutter


Question: Category: HISTORIC PEOPLE 
Clue: A copper statue of this hero of the 1960s welcomes visitors to Star City near Moscow

Answer:
yuri gagarin