Concerning the Aftermath of the Pearl Harbor Attack, Which of the Following

Concerning the aftermath of the Pearl Harbor attack, which of the following statements is true?

A) Though outraged over Pearl Harbor, both Franklin Roosevelt and Winston Churchill agreed that Germany posed a greater threat and the Allies should concentrate on Europe.
B) Ironically, American unity forged by the disastrous loss at Pearl Harbor made the Allied defeat of France possible.
C) Precise reading of each other's cultural character and likely behavior explain both Japan's successful surprise attack and America's decisive response.
D) Pearl Harbor was the only victory the Japanese had in the western Pacific until the summer 1942 when they successfully attacked the Philippines.