Why would nicotine gum be helpful for a smoker trying to quit, since it contains the harmful drug?

A. Gum contains such a low amount of nicotine the smoker can barely tell it is there.
B. Chewing the gum takes the smokers kind off of cigarettes, which changes their habit,
C. It helps reduce the nicotine withdrawal symptoms while keeping the other bad chemicals out of their body.
D. When used with cigarettes, it provided enough nicotine to eliminate the urge in just a few days

C. It helps reduce the nicotine withdrawal symptoms while keeping the other bad chemicals out of their body.

Nicotine gum can be helpful for a smoker trying to quit because it provides a controlled amount of nicotine to help reduce withdrawal symptoms such as cravings and irritability. It allows the individual to gradually reduce their nicotine intake and break the habit of smoking without exposing themselves to the harmful chemicals found in cigarettes.