Using Substitute Source of Nicotine to Quit Smoking Works By

Using substitute source of nicotine to quit smoking works by:

A) using a different substance that tastes like nicotine.
B) consuming large amounts of nicotine so that the body rejects it.
C) supplying small amounts of nicotine to diminish the intensity of withdrawal.
D) seeking professional help, including psychotherapy, medications, and a combination of both.