A Group on the Quad Is Advocating Marijuana Use to Increase

A group on the quad is advocating marijuana use to increase academic achievement. You remember reading about this in your psychology textbook and report to your friends that studies have found

A) a positive correlation between marijuana usage and academic achievement.
B) a negative correlation between marijuana usage and memory function.
C) no relationship between marijuana usage and academic achievement.
D) that marijuana usage causes lowered academic achievement.