Who the United States might bomb in November 1944

If the United States had an atomic bomb by November 1944, who would be bombed first?

Probably Japan, because using the weapon in Europe would put nearby Allied personnel at greater risk.

Germany is an obvious candidate, but the land campaign in Europe placed large Allied forces much closer to potential targets. That proximity increased the risk to friendly personnel from an unfamiliar weapon. Japan offered targets farther from American ground forces. The answer therefore still leans toward Japan while presenting the choice as a judgment rather than a certainty.