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

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

I think this was on Edge, but if it wasn't than this is the answer because I already did this lesson.

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;