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: Dental
[{'content': 'Welsch regimen is used to treat \nSelect and explain. \nA. Sporotrichosis, B. Histoplasmosis, C. Coccidiomycosis, D. Actinomycosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Welsch regimen is used to treat Actinomycotic mycetoma where "Amikacin & Cotrimoxazole" are given together.', 'role': 'assistant'}]