Drugs,shocks,and psychotherapy are the treatments of:

Which of the following is known as 'brown sugar'?

From which plant parts are Bhang, Ganja, and Charas obtained?

Cocaine or coke interferes with the transport of which neurotransmitter?

Nayan's friend is consuming drugs. What should Nayan do?
$(i)$ Discuss with the friend's parents. $(ii)$ Bring the matter to the attention of the friend's teacher. $(iii)$ Advise him to stay away from alcohol and drugs. $(iv)$ Try to understand why he is consuming drugs and show empathy. $(v)$ Inform him about the physical harm caused by addiction. $(vi)$ Provide proper guidance and help him stay away from addiction.

Which of the following pairs is correctly matched?