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': '"Sycosis barbae" is caused by \nSelect and explain. \nA. Streptococcus aureus, B. Pseudomonas, C. Trichophyton rubrum, D. Staphylococcus aureus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: It is the repeated\xa0infection of bearded region by Staphylococcus.aureus.', 'role': 'assistant'}]