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
Most common cause of intestinal obstruction is? 
Select and explain. 
A. Ileocaecal tuberculosis, B. Carcinoma colon, C. Intussusception, D. Adhesions
D: Adhesions
Answer: D: Adhesions 
Explanation: .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