Answer:
D. both B and C
Explanation:
Geologic processes that assist in the formation of metamorphic rock include tectonic folding and faulting.
A change in the core would have the greatest effect on the convection currents in the mantle. Hope this helped!
It should be noted that a volcanic arc results from ridgeconvergent while tectonic movements and is associated with mid ocean ridge.
<h3>What is a volcanic arc ?</h3>
A volcanic arc can be regarded as a chain of volcanoes, which some miles long and it is usually formed above a subduction zone.
Learn more about volcanic arc at;
brainly.com/question/16625756