This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small & Large Intestine, Subject name: Surgery
[{'content': 'Most common cause of acute intestinal obstruction in children is: \nSelect and explain. \nA. Intussusception, B. Inguinal hernia, C. Volvulus, D. Internal hernia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) IntussusceptionRef: Bailey 26th edition, Page 1184* Most common cause in children: Intussuscpetion* Most common cause in adults: Adhesions', 'role': 'assistant'}]