Me personally, from what I've seen it would probably be B. I myself used to keep my emotions private and it caused a bit of depression. Trying to be like one's peers usually means that they are not content with who they are and wish to be better by being like someone who is liked by more people.
Hope this answer helps! feel free to ask any additional questions :)
1 and 4. At first glance, 3 seems like an obvious choice, but a state would not create and enforce national guidelines.
