I believe your answer is D. Speaking clearly so that audiences will understand the information is an essential key to the work of a broadcast journalist.
Answer:
The answer is A) to stop the spread of Communism from the USSR
Explanation:
Some people didn't have homes at the time so they would pretty much become an indentured servant so they can have a place to live until their "Contract" was up.
The Mayan or mythology also but I would go with Mayan since it is a civilization
Answer:
The Vietnamese had expert guerrilla fighters