Large Copper Deposits,called Porphyry Copper Deposits,form Because

Multiple Choice

Large copper deposits,called porphyry copper deposits,form because:

A) copper accumulates within and near intrusions that have a porphyritic texture
B) seawater is heated and rises to the surface,forming black smokers
C) a change in Earth's atmosphere caused copper to be deposited by groundwater
D) deep groundwater,rich in lead and zinc,encounters buried hills of granite