Concerning Cocaine,which of the Following Statements Is FALSE

Concerning cocaine,which of the following statements is FALSE?

A) Coca-Colas once contained a small amount of cocaine.
B) The effects of cocaine administration usually last several hours.
C) First-time users of cocaine risk having convulsions, a heart attack, or a stroke.
D) Three out of four cocaine abusers who remain in treatment do succeed in breaking their coke dependence.