This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
[{'content': 'A child has a respiratory infection with a membrane over Peritonsillar area. A swab was taken from the local area. The appropriate media for culture is \nSelect and explain. \nA. LJ media, B. Blood tellurite media, C. Cary media, D. Loeffler serum slope', 'role': 'user'}, {'content': "Answer: B \nExplanation: A common cause of respiratory infection with a membrane over the tonsil is Corynebacterium diphtheriae. Media appropriate for culture is Tellurite blood agar: Tellurite inhibits the growth of most other bacteria acting as a selective agent for diphtheria bacilli. Diphtheria bacilli reduce Tellurite to metallic tellurium which is incorporated in the colonies giving them a grey or black color. Reference: Textbook of Microbiology; Anathanarayan and panicker's; 10th edition; Page no: 242", 'role': 'assistant'}]