A Female Student Is at a Fraternity Party Where Alcohol

A female student is at a fraternity party where alcohol is flowing freely,the music is loud,and people are dancing and talking.Most people seem to be having a great time.What action should the student take,if anything,when she overhears two men talking about having put ketamine in a girl's drink?

A) First get out of there,call the campus police,and then report what was heard
B) Nothing,because she had no idea which woman was targeted or even if she drank what was given to her
C) Talk to the two men about the dangers and side effects of ketamine
D) Watch to see if any young women pass out or are otherwise impaired