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: Pediatrics
[{'content': 'Most impoant cause of abdominal distension in intestinal obstruction - \nSelect and explain. \nA. Cases produced by bacterial activity, B. Cases diffused from blood, C. Swallowed air, D. Products of digestion', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Swallowed air o In intestinal obstruction distension of the intestine is caused by accumulation of gas and fluid proximal to and within the obstructed segmented. o 70-80% of this intestinal gas consists of swallowed air.", 'role': 'assistant'}]