Which of the following correctly describes the Europe First strategy?

A.
It was an agreement among allies to end the war in Europe before the war in the Pacific.
B.
It was a US immigration policy prioritizing European immigrants over Asians or others.
C.
It was a policy among European countries to remain neutral in wars outside the continent.
D.
It was a US foreign policy to let Europe handle the war by itself without US assistance.

A. It was an agreement among allies to end the war in Europe before the war in the Pacific.