Question

the mechanism used by a person to vape or inhale flavors, chemicals, or nicotine.
nds - e - cigarette
leukoplakia
nicotine
carcinogens
stimulant

Explanation:

The question asks for the mechanism (device) used to inhale vaping substances. NDS - E-Cigarette is the device, while the other options are either substances (Nicotine, Carcinogens, Stimulant) or a condition (Leukoplakia).

Answer:

A. NDS - E-Cigarette