Which of the Following Statements Concerning Marijuana Is FALSE

Which of the following statements concerning marijuana is FALSE?

A) Marijuana intoxication is typically stronger than drugs like LSD or alcohol.
B) People who smoke five or more joints a week score four points lower on IQ tests.
C) The THC in marijuana can suppress the body's immune system, increasing the risk of disease.
D) Activity levels in the cerebellum are lower than normal in marijuana users.