Zoe Is a Psychologist Who Studies Addiction

Zoe is a psychologist who studies addiction. Zoe is asked to create a presentation for high school and university students that will inform them about the dangers of using drugs and hopefully deter them from doing so. Zoe places particular emphasis on opioids, due to the current opioid epidemic. However, she will also make sure that she covers marijuana and alcohol in sufficient detail.
-Why does Zoe's presentation target high school and university students specifically (i.e.,the 15-24 year old age group)

A) This age group uses significantly more drugs than those older than 25.
B) The effects of drugs are significantly more prominent in this age group.
C) People in this age group go from occasional users to regular users more quickly.
D) Rehabilitation efforts are less successful in this age group.