=+5. What can be expected in someone who is a frequent user of marijuana?

a. There will be an increased production of dopamine in the brain.

b. They will need to consume larger doses of the drug to feel its effects.

c. They will experience a dangerously elevated heart rate.

d. They will experience vivid hallucinations.

e. They will require less of the drug to feel its effects as the drug builds up in their system.