The Glasgow Coma Scale ranges from:

The Glasgow Coma Scale (GCS) is a clinical scale used to assess a person's level of consciousness after a brain injury. It evaluates three aspects of responsiveness: eye opening, verbal response, and motor response. Each of these areas is scored based on specific criteria, with the total GCS score ranging from 3 to 15. A score of 3 indicates deep unconsciousness, while a score of 15 indicates full alertness and responsiveness. This range allows healthcare providers to quickly gauge the severity of a patient's condition, which is critical in emergency and critical care settings.

In contrast, the other options provided do not accurately represent the scoring range of the GCS, making them unsuitable for this question. The ranges presented in those options are either too broad or don't align with the specific criteria outlined in the Glasgow Coma Scale. Understanding the correct range is essential for effective communication among medical professionals and for providing appropriate care.