This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'Most common cause of intestinal obstruction is? \nSelect and explain. \nA. Ileocaecal tuberculosis, B. Carcinoma colon, C. Intussusception, D. Adhesions', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .Adhesions and bands are the commonest causes of intestinal obstruction in Western countries. In India, hernia and then adhesions are the two common causes of intestinal obstruction.Clinical features * Pain abdomen--colicky type and recurrent and episodic * Distension, vomiting * Constipation * Reduced bowel sounds on auscultation * Previous surgical scars commonly observed * Dehydration, tachycardia, hypotension. ref:SRB&;s manual of surgery ,ed 3,pg no 870', 'role': 'assistant'}]