which of the following best explains the relationship of volcanoes to plate boundaries?

A. Volcanoes are formed only when earth's crust move towards each other.
B. Volcanoes are formed only when earth's crust move away from each other.
C. Volcanoes are formed only when magma rise from different hotspot located all over the earth.
D. Volcanoes are formed from the interaction of the earth's crust depending on the direct of its movement.