Your friend fell off his skate bored and hit his head, He was wearing a helmet but he cant stand up. he says he feels dizzy and might vomit what should you do?

A. Tell an adult because he might have epilepsy
B. Tell an adult because he might have an concussion
C. Dont worry about it because he was wearing a helmet
D. Dont worry about it because it was just a bump on the head.

B. Tell an adult because he might have a concussion