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: Dental
[{'content': 'Most common organism causing T. capitis is – \nSelect and explain. \nA. Trichophyton tonsurans, B. Microsporum, C. Epidermophyton, D. Candida albicans', 'role': 'user'}, {'content': 'Answer: B \nExplanation: "Ringworm of the scalp occurs in children exclusively and is mainly due to M. canis".\nFollowing statement of Harrison creats some confusion here :-\n"The predominent organism is T tonsurans".\n\nTherefore, I had to do extensive search on this question and I collected following information :\nMost common organism causing Ectothrix is M. canis, whereas most common organism causing Endothrix is T tonsurans. Ectothrix is the most common type of T. capitis, therefore M. canis would be the most common cause of T. capitis.', 'role': 'assistant'}]