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': "Inflammatory bowel disease found in children :a) Ulcerative colitisb) Tropical spruec) Crohn's diseased) Celiac diseasee) Cystic fibrosis \nSelect and explain. \nA. ac, B. a, C. ad, D. bc", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]