What was a concern of some scientists after the Manhattan Project?

Some scientists involved in the Manhattan Project questioned whether the atomic bomb was still necessary after Germany surrendered in May 1945. They argued that with Germany defeated, there was no longer a need to use an atomic weapon, even though the war against Japan continued. Therefore, the correct choice is “With Germany defeated, they did not think there was a need for an atomic weapon.”

AI-written and checked against the verified answer.