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
Most common cause of small intestine obstruction is? 
Select and explain. 
A. Intussception, B. Idiopathic adhesions, C. Tumors, D. Postoperative adhesions
D: Postoperative adhesions
Answer: D: Postoperative adhesions 
Explanation: ANSWER: (D) Postoperative adhesionsREF: Bailey & Love 25th edition page 1188, overview"The most common cause of small-bowel obstruction (SBO) is postsurgical adhesions"