I would say this is A. Head , hope this helps !
There is a number of things you could do you but the best thing you could do is to leave the situation and go get help. You should avoid getting into it because that could just make it worse same goes with being defensive. I hope this helps!
Answer is number 6 hope i help
Can not let anyone do anything. Because he/she is scared that they will get hurt... or they could hurt some one if they hurt his/her friend.