According to the Research on Nicotine and Cigarette Smoking, Which

Multiple Choice

According to the research on nicotine and cigarette smoking, which of the following statements is FALSE?

A) Nicotine is classified as a depressant, or downer.
B) Nicotine is so toxic that it is sometimes used to kill insects.
C) Sixty percent of the smokers between 15 and 24 years old are addicted to nicotine.
D) Up to 90 percent of people who quit smoking relapse within a year.