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: Pharmacology
[{'content': 'The drug of choice in scleroderma induced hypeensive crisis is - \nSelect and explain. \nA. ACE inhibitors, B. Thiazides, C. b - blockers, D. Sodium nitroprusside', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., ACE inhibitors", 'role': 'assistant'}]