Which is not a method of drug intake?

Answer: C — Chewing gum

Chewing gum is not a method of drug intake because it does not involve the ingestion, inhalation, or injection of a substance. While drugs can potentially be absorbed through the mucous membranes in the mouth, this is not a common or effective method of drug intake. Drinking, snorting, and injecting are all methods in which drugs are introduced into the body for their desired effects.