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
Jeep disease is also known as: March 2008 
Select and explain. 
A. Anal incontinence, B. Hemorrhoids, C. Pilonidal sinus, D. Anal fissure
C: Pilonidal sinus
Answer: C: Pilonidal sinus 
Explanation: Ans. C: Pilonidal sinus