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: ENT
[{'content': 'White patch in the throat may be due to - \nSelect and explain. \nA. Streptococcus, B. Actinomycetes, C. Sporotrichosis, D. All of these', 'role': 'user'}, {'content': "Answer: A \nExplanation: Streptococcus causes pyogenic membranous tonsillitis, and Borrelia vincenti (Vincent's angina) and diphtheria can cause membrane over the tonsil.", 'role': 'assistant'}]