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': 'Trichophyton species can infect - \nSelect and explain. \nA. Skin, hair and nail, B. Skin and nail, C. Hair and nail, D. Skin and hair', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]