How did US involvement in World War II change over the course of the war?
O A. The United States sold supplies to nations on both sides of the war until German submarines sank its ships.
OB. The United States refused to help nations on either side of the war until the Japanese attack on Pearl Harbor.
O C. The United States started as neutral, then began supplying Allied forces, and then began fighting on the Allied side.
OD. The United States started as neutral, then declared war on the Axis powers, and then began supplying the Allied forces.