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: Microbiology
[{'content': 'Poached egg colony on potassium tellurite agar is characteristic of \nSelect and explain. \nA. C. diphtheriae gravis, B. C. diphtheriae intermedius, C. C. diphtheriae mitis, D. C. Jeikeium', 'role': 'user'}, {'content': "Answer: C \nExplanation: Daisy head - Gravis\nFrog's egg colony - Intermedius\nPoached egg - Mitis.", 'role': 'assistant'}]