The answer is B because i had this before trust me it’s right
P.U.S.H
People United to Save Humanity
First, they wanted to stay out, then they started to help England and France, and finally when Japan attacked they totally got involved.
Barlett claimed that Hitler could have climbed down if Chamberlain stood firm and did not make any appeasement. He believed that Hitler doesn't have the support of his people. He thought that if only Chamberlain at that time wage war in Germany, Hitler would easily be defeated.