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': 'Gastrojejernostomy surgery belongs to \nSelect and explain. \nA. Clean surgery, B. Contaminated surgery, C. Clean contaminated surgery, D. Dirty surgery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Clean contaminated surgery :\n\nWound is exposed to not only skin but also GI tract / Respiratory tract / Urinary tract organism in controlled enviroment.\nHence Gastrojejunostomy surjery belongs to this category.', 'role': 'assistant'}]