In Making the Decision to Use the Atomic Bomb on Japan

In making the decision to use the atomic bomb on Japan, the United States dealt with which of these situations?

A) The Japanese had throughout the war shown fierce resistance and determination.
B) Some analysts suggested American casualties during an invasion of Japan might rise to 200,000.
C) Some who were against dropping the bombs believed that the Japanese were on the verge of surrendering.
D) both a and b
E) both a and c