Which two arrows represent processes in the rock cycle that require heat and pressure?

The arrows represent the metamorphic rocks.

Explanation:

As the part of the rocks cycle the rocks are formed and transformed by the heat and pressure that are then converted into the metamorphic rocks due to intense heat and pressure if the over long accumulations of the process of the dynamic or contact metamorphism.

The answer is b im not sure 

Answer they are produced by collision of tectonic plates;