An anticline - it is in an arch-like shape and its oldest rocks are located at its core.
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<span> a decrease in pressure. The magma rises and melts as the divergent plate boundaries in the ocean decreased in pressure.</span>
C. increased job opportunities :)
This paragraph should help you out :)