Answer:
she does not join this is kinda a short question I need more to it. but she should NOT join
Hello mate, i believe the options are...
She should find out if her friends are on the site before joining.
She should tell her parents she found an interesting site and ask to join.
She should wait until she is 13 before asking her parents to join.
She should check the site over to see if it looks safe before joining.
Well for safety reasons, sentence 3 is the right answer. So (C)