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': 'Excessive blood loss during mandibulectomy can be prevented by all of the following except? \nSelect and explain. \nA. Use of pressure and packing, B. Use of electrocautery, C. Adrenaline infiltration, D. Artery application to the open vessels', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]