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: Surgery
[{'content': 'In Mucoviscidosis of the pancreas the commonest defect is in the - \nSelect and explain. \nA. Jejunum, B. Ileum, C. Ascending colon, D. Descending colon', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Terminal ileum is filled with meconium in mucoviscidosis.', 'role': 'assistant'}]