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': 'Contraindication of Enteral nutrition :a) Intestinal obstructionb) Severe Pancreatitisc) Severe diarrhoead) IBDe) Intestinal fistula \nSelect and explain. \nA. abce, B. abc, C. acd, D. ace', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]