Answer:
In the lead-up to World War II, Appeasement was the name given to Britain's policy in the 1930s of allowing Hitler to expand German territory unchecked in order to avoid conflict.
After declaring war, the United States government transformed peacetime industries into war industries (B).
Explanation:
In January 1942, President Franklin D. Roosevelt ordered the establishment of the War Production Board. Its purpose was to convert the factories of peacetime industries into manufacturing plants for weapons and military equipment for the fight. The second goal was to conserve materials like metal, which soldiers would need for the fight in such things as guns, ordnance, tanks, ships, aircraft, tactical vehicles and so on.