How did World War II come to an end in Europe and the Pacific?

Atomic Bombing of Hiroshima and Nagasaki

Even after the Allied victory in Europe, World War II continued to rage in the Pacific Theater. American forces had made a slow, but steady push toward Japan after turning the course of the war with victory at the June 1942 Battle of the Midway

c is the correct answer for this question.

formulating the initial idea for the policy

answer is c.