Answer: The answer is B the american Indian movement
Explanation:
The main reason why the United States sent economic aid and military advisers to South Vietnam was because they wanted the South Vietnam to win their fight over the North Vietnamese, who were communist. We also wanted to limit the number of American troops we sent into the conflict.
The colony became vastly richer due to the diamond deposits. Even locals happened to gain a lot form it and there is a famous example of a woman who was married to a Portuguese official who died wealthy and could buy anything she wanted. Of course, the working conditions were harsh for the workers.