Nicotine is a that speeds up neural activity by increasing the body's production of epinephrine.

This question is incomplete. Here is the complete question:

Nicotine is a that speeds up neural activity by increasing the body's production of epinephrine.

a. Narcotic

b. Depressant

c. Stimulant

d. Tranquilizer

The correct answer is option c. Stimulant .

Explanation:

Nicotine is a stimulant. Stimulants work directly on the central nervous system, causing our brain to accelerate all its functions and raising the level of generation of chemicals on our body, such as epinephrine.

When you consume nicotine you first begin to get feelings of pleasure, but then you end up developing an addiction, which if not consumed causes withdrawal.

Given this information, we can say that the correct answer is option C.

i believe it is true.