a. the appeal of Christianity among all social classes of Europe.
Answer:
correct answer is C
Explanation:
hope this helped Mark BRAINLEST
More soldiers, use of mercenaries, more supplies, better experienced
Answer:
Containment of Communism
Explanation:
During the Cold War, the chief policy of the United States was to contain the spread of communism. And so, the plan for Vietnam was to keep communism from taking over and US troops were sent there to ensure that.