What most likely happens when a plate under the ocean is forced beneath another plate? Seafloor splits open creating a large trench.
Seafloor spreading moves plates away.
New land is formed from hot molten rocks.
The top plate is uplifted and may create a tsunami.

A. Seafloor splits open creating a large trench

Explanation:

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it is D/  Location A, because the lighter oceanic plate will be pushed under the continental plate

Explanation:

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.