Question

President Truman decided to use both the atomic bomb on Japan in 1945 because
a. he believed it would convince hitler to surrender
b. It was the last hope the U.S. had of winning the war
c. Congress would not fund an invasion of the Japanese mainland
d. it would prevent hundreds of thousands of deaths that an invasion of Japan would cause

Answer 1

He had many reasons but he decided to drop the atomic bomb because he hoped that Japan would surrender. He also wanted to avoid having an invasion by the Japanese  because it would be costly, difficult and terrible since the Japanese attacks were so brutal.

The answer I'd go with is D