Final answer:
Receiving a repeat concussion before recovery from the first can lead to an increased risk of permanent brain damage, which highlights the importance of proper diagnosis, treatment, and recovery time for concussions. The correct answer is option: C) Increased risk of permanent brain damage.
Step-by-step explanation:
The potential consequence of receiving a repeat concussion before the brain fully recovers from the initial one is C) Increased risk of permanent brain damage. A concussion is a type of mild brain injury that typically heals on its own, but when a second concussion occurs before full recovery, it can lead to more severe and lasting problems.
These can include issues with memory, learning, and balance, and in some cases, the damage can be irreversible. It is essential to treat concussions with care and allow adequate time for recovery to prevent such outcomes.