Which Statement About the Use and Abuse of Ketamine Is

Which statement about the use and abuse of ketamine is false?

A) Ketamine's popularity can be explained by the fact that the drug does not cause dependence.
B) Many abusers of ketamine are medical or veterinary practitioners.
C) A number of intellectuals experimented with ketamine as a mind-expanding drug, similar to LSD.
D) Ketamine's use is difficult to track, but is increasing at popular events such as raves.