This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
[{'content': 'Which of the following drugs can precipitate angina? \nSelect and explain. \nA. Amlodipine, B. Nifedipine, C. Diltiazem, D. Verapamil', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. NifedipineRisk of angina is with peripherally acting CCB due to short duration of action and development of reflex tachycardia. This type of risk is seen with nifedipine.', 'role': 'assistant'}]