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': "Grayish white membrane in throat may be seen in all of the following infections except: \nSelect and explain. \nA. Streptococcal tonsilitis, B. Diphtheria, C. Adenovirus, D. Ludwig's angina", 'role': 'user'}, {'content': "Answer: D \nExplanation: Membrane in Throat is Caused by Pyogenic organisms viz. Streptococci, Staphylococci causing membranous tonsillitis Diphtheria Vincent's angina (Caused by fusiform bacilli and spirochetes: Borrelia vincentii) Candidiasis/monoliasis/oral thrush Infectious mononucleosis Agranulocytosis Leukemia Aphthous ulcers Traumatic ulcers", 'role': 'assistant'}]