This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnostic and operative ENT, Subject name: ENT
[{'content': 'Commonest postoperative complication of tonsillectomy is \nSelect and explain. \nA. Palatal palsy, B. Haemorrhage, C. Injury to uvula, D. Infection', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Commonest postoperative complication of tonsillectomy is haemorrhage Haemorrhage may be primary, secondary and reactionary haemorrhage Primary haemorrhage occurs at the time of operation Reactionary haemorrhage occurs within a period of 24 hrs Secondary haemorrhage occurs 5-10th postoperative day Re: Textbook of Ear, Nose and Throat, Dhingra, 6th Edition; Pg no: 430', 'role': 'assistant'}]