Answer:
If you feel bad about bullying them and you really want to get it off your chest, you SHOULD contact them through Instagram and let them know that you're genuinely sorry for whatever you did. If you're getting bullied, you need to tell your principal and your guardian, and if you want, you can speak up to the bully. Never try to fight the bully, it can end with you or others getting hurt or getting in trouble which isn't good.
Explanation:
The answer is the second option: a significant historical event
Researchers should be studying how brain chemistry is affected when children read about love in fairy tales.