Which of the Following Statements Accurately Describes the Significance of the Attack

Which of the following statements accurately describes the significance of the attack on Pearl Harbor?

A) It prevented a British attack on Syria from bases in Palestine and Iraq.
B) It caused Europe to no longer be considered a principle theater of operation for the rest of the war.
C) It greatly expanded the dimensions of the war and tied it to a struggle for control of the Pacific Ocean.
D) It led the British and Americans to stop devoting money and resources to the Manhattan Project.
E) It led Hitler to believe that Germany would lose the war, due to the entry of the United States as an Allied power.