The statement the diet-drug revolution is facing a setback is supported by the following facts EXCEPT that ______.
A．some health organizations and diet chains have suspended their support for the pills
B．some states have forbidden or limited the prescriptions of the pills
C．patients in Florida are advised to drop the use of fen-phen
D．Sheldon Levine, a New Jersey doctor, recommended one of the pills on TV and in his book