This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
[{'content': 'Nimodipine is used in(REPEAT) \nSelect and explain. \nA. Subarachnoid haemorrhage, B. Intra cerebral haemorrhage, C. Extra dural haemorrhage, D. Subdural haemorrhage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Nimodipine- A sho-acting calcium channel blocker Crosses blood brain barrier because of its high lipid solubility Selectively relaxes cerebral vasculature Can prevent and reduce the neurological deficit caused by cerebral vasospasm following subarachnoid hemorrhage', 'role': 'assistant'}]