Question

which drug contains the chemical thc and affects specific receptors in the brain?
ecstasy
cocaine
marijuana
amphetamines

Explanation:

THC (tetrahydrocannabinol) is the main psychoactive chemical in marijuana. Ecstasy has MDMA, cocaine has cocaine alkaloids, and amphetamines have amphetamine - like compounds. So marijuana is the drug that contains THC and affects brain receptors.

Answer:

C. marijuana