Which statement describes the formation of metamorphic rocks? Rocks beneath the surface melt. Rocks above the surface are eroded. Rocks beneath the surface are forced toward the mantle. Rock layers near the surface decrease pressure on layers beneath them

The answer would be:

Rocks beneath the surface are forced towards the mantle.

If you'd like to know more, read on:

Metamorphic rocks are formed when existing rocks undergo heat and pressure, which is enough to change the chemical and physical characteristics of rocks. As they are pushed down beneath the surface of Earth, the layers above it compound and create more pressure. As it goes closer and closer to the mantle, it heats up just enough to change but not to melt.

C. Rocks beneath the surface are forced toward the mantle.