Your Friend Is Taking an Over-The-Counter Medication

Multiple Choice

Your friend is taking an over-the-counter medication.He claims that it is not a psychoactive drug,but you claim it is.What characteristic of the drug would most likely support your argument?

A) The drug is available over the counter.
B) The drug is legal.
C) The drug activates the brain's neurotransmitter receptors.
D) The drug is nonprescription.