How Would Acidification of Seawater Affect Marine Organisms

How would acidification of seawater affect marine organisms?

A) It will increase dissolved carbonate concentrations and promote faster growth of corals and shell-building animals.
B) It will decrease dissolved carbonate concentrations and promote faster growth of corals and shell-building animals.
C) It will increase dissolved carbonate concentrations and hinder growth of corals and shell-building animals.
D) It will decrease dissolved carbonate concentrations and hinder growth of corals and shell-building animals.