Which of the following drugs may be abused because of tolerance and physiologic dependence A.Lithium (Lithobid) and divalproex (Depakote).
B.Verapamil (Calan) and chlorpromazine (Thorazine). C.Alprazolam (Xanax) and phenobarbital (Luminal). D.Clozapine (Clozaril) and amitriptyline (Elavil).