In 1942 the Tide of World War II Began to Turn

In 1942 the tide of World War II began to turn in favor of the Allies because

A) of the huge costs of the campaign in Russia.
B) landing of Allied forces in France diverted German resources from the Eastern front.
C) Germany had to divide its war effort in order to give aid to Japan.
D) the German people were losing faith in the war effort.
E) of the attack on Pearl Harbor.