This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Which of the following is not a component of Glasgow Coma Scale? \nSelect and explain. \nA. Eye opening, B. Motor response, C. Pupil size, D. Verbal response', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e. pupil size", 'role': 'assistant'}]