Which of the Following Did the Authors Cite as an Advantage

Which of the following did the authors cite as an advantage of talking to strangers using new forms of online communication?

A) Teens may be able to hide things from their friends, but with strangers they can talk about anything.
B) Having access to strangers through online forms of communication may allow teens to get to sites that may help them cope with their offline problems.
C) Strangers that may be lurking in various chat rooms may be a safe way for teens to exhibit
D) There are no advantages for teens to have access to strangers via online forms of communication.