B. Appeasement
This is because hitler wanted to conquer territories in Europe and the Allies didnt want to risk another war
The item that was NOT a cause of the Reformation:
C. The desire to spread Islam to Western Europe.
Further details:
The Roman Catholic Church failed to provide much hope or comfort to people during the years of the 100 Years War and the devastation of the Black Death. Corruption within the church only became worse in the years that followed, and people were wanting change. Coupled with that were new ideas and challenges being posed by the start of the Scientific Revolution. Martin Luther, whose activity sparked the Reformation, was a contemporary of Nicolaus Copernicus, whose work sparked the Scientific Revolution.
The US succeeded in containing Communism largely through its proactive efforts to build solidarity with foreign nations. This can be seen through the execution of the Marshall Plan, which delivered aid to European countries in order to rebuild their economies and prevent the spread of Communism, and the establishment of NATO, which joined the US and the democratic countries of Europe in a military alliance.