The primary reason for the use of atomic bombs on Japan near the end of World War II was to force Japan to accept an unconditional surrender and bring a swift end to the war. By demonstrating the overwhelming destructive power of nuclear weapons, the United States aimed to compel Japan to capitulate, thereby avoiding a potentially long and bloody invasion of the Japanese mainland, which could have resulted in significant casualties on both sides.
The options provided do not directly mention this overarching goal, but the closest related choice would be:
To force Japan to accept the terms of surrender.
This aligns with the broader strategic reasoning of the United States at the time.