Final answer:
The normal Glasgow Coma Scale score is 15. It assesses the level of consciousness and neurological function in patients with brain injuries.
Step-by-step explanation:
The normal Glasgow Coma Scale score is D) 15. It is used to assess the level of consciousness and neurological function in patients with brain injuries. The scale evaluates three components: eye opening, verbal response, and motor response, with scores ranging from 3 (deep coma) to 15 (fully conscious and alert).