Final answer:
The main reason New Mexico (NM) was used for POW camps during World War II was strategic proximity to military facilities.
Step-by-step explanation:
The main reason New Mexico (NM) was used for POW camps during World War II was B) Strategic proximity to military facilities.
Being located near military facilities allowed for efficient transportation and communication between the camps and the military. This was important for security and logistical reasons. It also facilitated the supervision and control of the prisoners. Additionally, the proximity to military facilities provided access to resources and support in case of emergencies or specific needs.