This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Which of the following is not a biovar of diphtheria \nSelect and explain. \nA. Gravis, B. Intermedius, C. Belfanti, D. Meningitidis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Mcleod classification of Corynebacterium:FeaturesC.gravisC.intermediusC.mitisColony on tellurite blood agar Daisy head colovy Frog's egg colony Poached egg colony Hemolysis Variable Non hemolytic Hemolytic Glycogen & starch fermentation Positive Negative Negative Complication Paralytic & Hemorrhagic Hemorrhagic Obstruction lesion in air passage On broth medium Forms pellicle & granular deposits Granular deposits Diffuse turbidity Fouh biotype - C.belfanti", 'role': 'assistant'}]