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: Surgery
[{'content': 'The increased incidence of infection in the Ischio rectal fossa is due to - \nSelect and explain. \nA. Absence of deep fascia, B. Proximity to anus, C. Poor.blood supply, D. Presence of fibrofatty tissue', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]