The Allies Postponed Opening a Second Front in Western Europe

The Allies postponed opening a second front in western Europe until 1944 because

A) they hoped that Germany and the Soviet Union would cripple each other.
B) the United States was giving strategic priority to the Pacific War.
C) the Soviet Union requested a delay until it could join the campaign.
D) they believed that North Africa was more strategically vital.
E) the British were reluctant and preferred to attack the "soft underbelly" of Europe.