Answer:
B
Step-by-step explanation:
A: No. Appeasement was a dream that the British and French had. The Japanese Americans were in no danger from it.
C: No. The invasion of Poland was a European matter. It led to war with Hitler and Germany. America at the time was neutral.
D: No. The Japanese had been interred 3 1/2 years earlier that the end of WWII.
B is the answer. Once the attack on Pearl Harbor happened, America went to war. It is a critical fact to know if you are an American.