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
[{'content': '23 yrd old male with abdominal surgery, develops intestinal obstruction 2 yrs later, what is the likely cause - \nSelect and explain. \nA. Adhesions, B. Hernia, C. Intussecption, D. Volvulus', 'role': 'user'}, {'content': "Answer: A \nExplanation: 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.", 'role': 'assistant'}]