Which of the followings are in line with the text?
(1) More than 50% of adolescents and teens have been bullied on line.
(2) About 10% teens do not tell their parents if they are victims of cyberbullying.
(3) More than 80% of cyberbullying incidents are not reported to law enforcement.
(4) About 15% of teens have posted or sent sexually suggestive pictures of themselves to others.