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 small intestine obstruction in adults: \nSelect and explain. \nA. Adhesions, B. Malignancy, C. Crohn's disease, D. Hernias", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) AdhesionsRef: Bailey and Love 26th edition, Page 1180* Most common cause of obstruction in adults: Adhesions* Most common cause of obstruction in children: Intussusception', 'role': 'assistant'}]