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: Anatomy
[{'content': 'The most common cause of intestinal obstruction is \nSelect and explain. \nA. Adhesions, B. Volvulus, C. Intussuception, D. Hernia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Adhesions are the most common cause of intestinal obstruction in almost 40% of cases. The clinical manifestation are Intestinal obstruction Abdominal pain Abdominal distension Vomiting and constipation Ref: Bailey and love 27th edition Pg no : 1278', 'role': 'assistant'}]