What Is Happening in the Mantle Beneath a Subduction Zone

Multiple Choice

What is happening in the mantle beneath a subduction zone?

A) Hot mantle rock is rising, pulling down a cold ocean slab.
B) Cool mantle rock is rising, pulling down a warmer ocean slab.
C) The mantle is molten and the subducting slab sinks into it.
D) Relatively cool mantle rock is sinking, pulling down on a cold ocean slab.
E) Hot mantle rock is sinking, pulling down on a warm ocean slab.