While visiting his grandparents Tanzania, Elijah visits some sites where Earth is rifting. When he gets home to California, he draws the model below to use in a presentation about his travels and the geological events happening in eastern African. two continental plate edges diverging, with magma flowing up between them

A classmate tells Elijah that he saw the same thing in Iceland, an island nation in the North Atlantic. What is different about the rift that Elijah saw?
A. It's at a transform plate boundary, whereas Iceland is on a convergent plate boundary.
B. It's a rift between slabs of continental crust, whereas Iceland is part of a mid-ocean ridge between two oceanic plates.
C. It's a rift between two continental plates, whereas Iceland is at a boundary between a continental plate and an oceanic plate.
D. It's a rift valley, whereas what his classmate saw in Iceland was a divergent zone.