Subduction zones typically occur in option B, where an oceanic plate is moving toward a continental plate. In a subduction zone, the denser oceanic plate is forced underneath the less dense continental plate, leading to geological features such as deep ocean trenches and volcanic arcs.
Option A describes divergent boundaries where plates move away from each other, C describes rift zones where a continental plate is being split up, and D refers to continental collision zones where two continental plates collide, which do not typically involve subduction.