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': 'Skin pigmentation occurs with which of the following drugs ? a) Clofazimine b) Minocycline c) Sulfonamides d) Gold e) Rifampicin \nSelect and explain. \nA. bde, B. acd, C. ace, D. abd', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]