A Client Takes Two Medications at the Same Time

A client takes two medications at the same time.Why might the action of one drug be intensified when this occurs?

A) Neither drug will bind to any plasma protein receptors,and the effect of the more potent drug will be intensified.
B) A client must never take two medications at the same time.
C) The drugs bind together,and the effect of the more potent drug is intensified.
D) Both drugs compete for the plasma protein receptors,and one drug will displace the other.