If Adenylyl Cyclase Were Inhibited in Animal Cells, ____

If adenylyl cyclase were inhibited in animal cells, ____.

A) binding of epinephrine to beta receptors would have no affect on cyclic AMP levels.
B) binding of epinephrine to beta receptors would increase cyclic AMP levels.
C) an increase in mRNA for cyclic AMP would occur.
D) an increase in mRNA for more beta receptors would occur.
E) epinephrine would not be able to bind to beta receptors.