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': 'A child presents with a white patch over the tonsils,diagnosis is best made by culture in - \nSelect and explain. \nA. Loeffler medium, B. LJ medium, C. Blood agar, D. Tellurite medium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]