Answer: the correct answer is B: an invasion of Japan will cost hundreds of thousands of American lives
Explanation: the President Harry S. Truman was advised by some of his counselors that any attempt to invade Japan would result in a high number of American casualties then he ordered that the new weapon be used to bring the war to a speedy end. On August 6, 1945, the American bomber Enola Gay dropped a five-ton bomb over the Japanese city of Hiroshima.