At divergent plate boundaries in the ocean, magma rises and melts because of

Ahigher temperatures at the surface.
Ba decrease in pressure.
Cintrusive plutons at the boundary.
Dincreased silica content of magma.

Verified Answer :

The correct answer for the question that is being presented above is this one: "B. a decrease in pressure." At divergent plate boundaries in the ocean, magma rises and melts because of a decrease in pressure. The magma rises and melts as the divergent plate boundaries in the ocean decreased in pressure.