Which of the following is not a possible sign of a drug addiction?
a. engaging in risky behavior to obtain drugs
b. allowing drug use to interfere with basic life functions
c. hanging out with people who use drugs often
d. using drugs to cope with personal problems

Hanging out with people who use drugs often is not a possible sign of a drug addiction. Correct C

If you have friends or you hang out with people who use drugs it does not have to mean that you also use drugs. You can be stable as person enough and not to join them. All other options, like using drugs to cope with rel life problems, drugs restricting your life and daily activities, ... are signs of drug addiction, a disease that affects your brain and behavior.

perspiration and respiration.