Judy Has Joined a Social Network

Multiple Choice

Judy has joined a social network. She's having a blast, but a few things have her concerned. You tell her that you have experience with social networking sites, and you're happy to answer her questions.
-Judy has a ten-year-old neighbor, Abby. Abby's parents ask for advice regarding social networking sites. Judy tells them that ____.

A) most social networking sites have foolproof restricted areas for underage users, so Abby would certainly be safe
B) by no means should they let Abby near a social networking site, as there are no safeguards whatsoever
C) there may be age-appropriate social networking sites, but their safety features are not always foolproof, so Abby's parents should closely monitor her time there
D) none of the above