CAMP Binds to the _____ Subunits of Protein Kinase A

cAMP binds to the _____ subunits of protein kinase A, allowing the tetramer to dissociate and release _____.

A) active subunits; an active catalytic dimer
B) active subunits; two active catalytic monomers
C) regulatory subunits; an active catalytic dimer
D) regulatory subunits; two active catalytic monomers
E) regulatory subunits; two active regulatory monomers