Where and How Does Metamorphism Occur

Multiple Choice

Where and how does metamorphism occur?

A) mainly at low temperatures in the roots of volcanic mountain belts
B) beneath the thick accumulations of in sedimentary basins
C) wherever solid rocks are subjected to new conditions of temperature, pressure, stress, and a change in their constituent fluids
D) in response to sudden catastrophic geologic changes, mostly in the Precambrian.