Respuesta :
The best statement that best describes the effect nicotine has on the nervous system is it acts as a stimulant and a sedative. The correct answer is C.
It acts as both a stimulant and a sedative - this statement describes best that the effect nicotine has on the central nervous system.
The statement is describing the best that nicotine has effect on the central nervous system:
The impact of nicotine on the central nervous system is neuroregulatory in nature, affecting biochemical and physiological functions in a manner that reinforces drug-taking behavior. Dose-dependent neurotransmitter and neuroendocrine effects occur as plasma nicotine levels rise when a cigarette is smoked.
We did not exclude studies that reported beneficial effects of nicotine. The objective was to look at the effects of nicotine without confounding effects of other toxins and carcinogens present in tobacco or tobacco smoke.
Learn more about nicotine, refer:
https://brainly.com/question/26746230
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