<span>Nicotine is a substance that can act as both a stimulant or a sedative. For the particular case given in this item, nicotine is used as a stimulant. Stimulants increase attention, alertness, and can also elevate the heart rate, respiration, and blood pressure. </span>
<span>Answer to your quesiton is C.Stimulant. stimulants increase activity of the body, they can be pleasurable and invigorating, also they can produce physcological affects on the sympathetic nervous system. many drugs are stimulants. so answer to your question is Nicotine is a stimulant that speeds up neural activity by increasing the body's production of epinephrine</span>
