The Demand for the "Unconditional Surrender" of the Axis Powers

The demand for the "unconditional surrender" of the Axis powers

A) was unanimously agreed upon by Stalin, Churchill, and Roosevelt at the Teheran Conference.
B) was adopted at Casablanca at American initiative and without much thought to possible political
C) was insisted upon by Stalin and grudgingly accepted by the Americans and British.
D) was adopted in order to justify reparations payments.