Dexfenfluramine, an agent approved for the treatment of obesity, was removed from the U.S market due to.. Renal toxicity

Dexfenfluramine, an agent approved for the treatment of obesity , was removed from the U.S market due to
A. Cardiac valvular dysfunction
B. Gastric ulcerations
C. Renal toxicity
D. Ototoxicity
E. Hepaic impairment.