A. Moderate. If he can carry on a conversation without running out of breath then he is probably not a stranger to that type of workout and is use to much harder tasks.
Answer:
I. Peer pressure could lead a student to use drugs/tobacco
II. Environment, their parents could be using tobacco which would could make them feel like it is right.
III. They might feel as if using drugs/tobacco could cure their sadness/depression.
hope this helps :)