Question

body produced brain chemical called endorphins are most similar to drugs such as

alcohol
fentanyl
cocaine
tobacco

Explanation:

Endorphins are natural pain - relievers and mood - elevators in the body. Fentanyl is an opioid drug that also acts on the body's opioid receptors, similar to how endorphins do, producing pain - relieving and mood - altering effects. Alcohol, cocaine, and tobacco do not act on the body in the same opioid - related way as endorphins.

Answer:

B. Fentanyl