In Terms of Adolescent Development, Which of the Following Do

In terms of adolescent development, which of the following do the authors cite as a possibly a positive aspects of online communication?

A) They can practice self-disclosure and self-presentation, which may be a way for them to establish a coherent identity.
B) They can pretend to be someone else, so that people will never know who their real selves are.
C) They can engage in deviant and sexual activities which can serve as a precursor to their adult lives in these realms.
D) They can fool their parents into thinking they are investigating topics for school, while they are actually talking to strangers online.