Which high school student will most likely be able to abstain from abusing illegal drugs?

Alexei is most likely to abstain because he deliberately chooses social events advertised as substance-free, reducing exposure to situations where drugs may be present. Bryan and Deandra are already experimenting with substances, while Casey’s tendency to give in to peer pressure can make refusing drugs more difficult. The best choice is Alexei, who intentionally seeks out substance-free settings.

AI-written and checked against the verified answer.