This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'Jeep&;s disease is \nSelect and explain. \nA. Anal incontinence, B. Haemorrhoids, C. Pilonidal sinus, D. Anal fissure', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The term pilonidal sinus describes a condition found in the natal cleft overlying the coccyx, consisting of one or more, usually non-infected, midline openings, which communicate with a fibrous tract lined by granulation tissue and containing hair lying loosely within the lumen. A common affliction amongst the military, it has been referred to as Jeep disease. Reference : Bailey & Love, 27th Edition, page no = 1347.', 'role': 'assistant'}]