President Truman’s decision to drop the atomic bomb was viewed as controversial, and it is still debated today. Was using the atomic bomb necessary? Why or why not?

answer:

Yes, because it saved millions of people.

Explanation:

One of the greatest controversies to come out of World War II was whether the atomic bomb was necessary to bring about the war's end. Supporters of the bombings generally believe that they prevented an invasion of the Japanese mainland, saving more lives than they took by doing so. Opponents contend, among other arguments, that the bombings were unnecessary to win the war or that they constituted a war crime or genocide. Whether the atomic bombings truly forced the Japanese surrender, and whether projected casualty rates for the Japanese invasion were accurate, have been controversial issues for historians to tackle.

i believe the answer is d.