A . is my thinking and answer
Explanation:
because they paid them to do that
They got caught and executed
The answer to your question is B. However the troops were eventually withdrawn from Vietnam due to disagreements from the American people.
After the passage of the seventeenth amendment, Two senators were elected to serve each state. The seventeenth amendment to the united states constitution of the United States established the popular election of the United States Senators by the people of the states.