Which of these groups has the smallest influence on a teenagers decision to drink or smoke a coworkers b friends c family d media

This is a rather tricky question because each one has its own set of influences.
Coworkers can influence easily (long ago influenced my dad to smoke)
Friends have the highest influence
Family can also have an influence since you see them daily
Media is also a high influence

But I’d say coworkers would have the least amount of influence.

C. Because your family wouldn't want to pressure you into doing something so bad. Your friends will tell you to do it to fit in or be cool, but never your family.