This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oral cavity & Oesophagus, Subject name: ENT
[{'content': 'A membrane in throat is caused by all except \nSelect and explain. \nA. Streptococcus, B. Corynebacterium diptheriae, C. Staphylococcus aureus, D. Borrelia vincenti', 'role': 'user'}, {'content': "Answer: C \nExplanation: Differential diagnosis of membrane over tonsil Agranulocytosis Leukemia Neutropenia Infectious mononucleosis Pyogenic bacteria Candida Vincent's angina Diptheria Ref: Dhingra 7e pg 293.", 'role': 'assistant'}]