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
A patient has acute abdominal pain with blood and mucus in stool with palpable mass per abdomen is due to ? 
Select and explain. 
A. Meckels diveiculum, B. Volvulus, C. Intussusception, D. Hyperophic pyloric stenosis
C: Intussusception
Answer: C: Intussusception 
Explanation: Ans is (c) Intussusception A syndrome of colicky pain, passage of blood per rectum and a palpable mass (the intussuscepted segment) is characteristic of intussusception.