A 16-year-old football player is confused after being struck in the head by another player. He states he does not remember much of what happened, just waking up in the hospital about two hours after...

A 16-year-old football player is confused after being struck in the head by another player. He states he does not remember much of what happened, just waking up in the hospital about two hours after being hit. This client most likely is suffering from a:

1. Concussion

2. Moderate brain injury