**Core Concept:** Glasgow Coma Scale (GCS) is a clinical assessment tool used to evaluate the severity of brain injury and predict outcomes in unconscious patients. It evaluates three components: Eyes, Verbal, and Motor responses. Each component has a maximum score of 4, making a total score range from 3 to 15.

**Why the Correct Answer is Right:** In this question, the patient opens their eyes to painful stimuli, which indicates normal Eyes response. They are confused, suggesting a compromised Verbal response. Additionally, they are able to localize to pain, indicating a normal Motor response. Therefore, the patient has a total GCS score of 15 (4 for eyes, 4 for verbal, and 7 for motor).

**Why Each Wrong Option is Incorrect:**

A. Opening eyes to painful stimulus is considered a normal response, so option A is incorrect.
B. The patient exhibits a normal Eyes response but has a compromised Verbal response. This indicates a lower GCS score, making option B incorrect.
C. The patient has normal Eyes and Motor responses but compromised Verbal response. This results in a lower GCS score, making option C incorrect.
D. Opening eyes to painful stimulus is normal, but the patient has a compromised Verbal response. This results in a lower GCS score, making option D incorrect.

**Clinical Pearl:** The Glasgow Coma Scale assessment should be performed by two independent assessors and is essential in monitoring the patient's neurological condition and response to treatment. A lower GCS score indicates a more severe brain injury or dysfunction, while a higher score indicates a better prognosis.