This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intestinal Obstruction, Subject name: Surgery
23 yrd old male with abdominal surgery, develops intestinal obstruction 2 yrs later, what is the likely cause - 
Select and explain. 
A. Adhesions, B. Hernia, C. Intussecption, D. Volvulus
A: Adhesions
Answer: A: Adhesions 
Explanation: Ans. is 'a' i.e., Adhesions * In Western countries where abdominal operations are common, adhesions and bands are the most common cause of intestinal obstruction in such post abdominal surgery cases.