Regarding Aversion Therapy for Smoking Cigarettes, Which of the Following

Regarding aversion therapy for smoking cigarettes, which of the following statements is FALSE?

A) Behaviorists have found that electric shock and nauseating drugs are not required to make smokers uncomfortable.
B) Without the help of a therapist, most people quit too soon for rapid smoking to succeed.
C) A trained therapist should be present during the rapid smoking procedure because it can be dangerous due to the toxic nature of nicotine.
D) Rapid smoking is an example of the use of operant conditioning in causing extinction of the smoking habit.