This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Commonest cause of acute intestinal obstruction is ? \nSelect and explain. \nA. Adhesions, B. Volvulus, C. Inguinal hernias, D. Internal hernias', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Adhesion", 'role': 'assistant'}]