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: ENT
[{'content': 'Commonest post operative complication of tonsilectomy is - \nSelect and explain. \nA. Palatal palsy, B. Hemorrhage, C. Injury to uvula, D. Infection', 'role': 'user'}, {'content': 'Answer: B \nExplanation: "Post-tonsillectomy hemorrhage is the most common complication, occuring in approximately 2 to 5%, and should be\xa0taken seriously".\n─ Bellenger\'s otolaryngology', 'role': 'assistant'}]