Why did British Prime Minister Neville Chamberlain support a policy of appeasement prior to World War II? Select one:
a. Neville Chamberlain believed that Germany had a right to invade those countries because they were ethnically German.
b. The leaders of the United States urged Camberlain to ignore Germany's efforts to expand its borders, to avoid angering Germany.
c. Chamberlain believed that avoiding another world war was more important than protecting Austria or Czechoslovakia.
d. Great Britain was so preoccupied with its economic slump after World War I that Chamberlain did not notice the invasion.