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: Pathology
[{'content': 'Moality rate is higher among which of the following: \nSelect and explain. \nA. Small intestinal obstruction, B. Colonic obstruction, C. Adynamic ileus, D. Intestinal pseudo obstruction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The moality rate for obstruction of the small intestine is 10%. The moality rate for colonic obstruction is 20%. Adynamic ileus the prognosis is usually good. Ref: Harrison, E-18, P-2515.', 'role': 'assistant'}]