Why Is the Atlantic Ocean Likely to Develop a Subduction

Multiple Choice

Why is the Atlantic Ocean likely to develop a subduction zone along one or more margins,in the future?

A) because the most recently formed crust along the mid-ocean ridge is increasing in density
B) because the North American Plate is becoming smaller
C) because the Pacific Ocean will eventually close, and then subduction will need to occur somewhere else
D) because the very fast spreading rate at the East Pacific Rise is making crust that is too buoyant to subduct