This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cerebrovascular Diseases, Subject name: Surgery
[{'content': 'Best predictor in the GCS:- \nSelect and explain. \nA. Eye opening, B. Motor response, C. Verbal response, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Best indicator of outcome - Motor response Glasgow Coma Scale (GCS) Eye Opening Verbal response Best Motor Response Spontaneous 4 Oriented 5 Obey commands 6 To loud voice 3 Confused, disoriented 4 Localises pain 5 To pain 2 Inappropriate words 3 Flexion (withdrawal) to pain 4 No response 1 Incomprehensible sounds 2 Abnormal flexion posturing 3 No response 1 Abnormal Extension posturing 2 No response 1 On the basis of GCS score 13 -15 - Mild head injury * 9-12 - Moderate head injury * <=8 - Severe head injury .', 'role': 'assistant'}]