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': 'Time of occurence of secondary haemorrhage after tonsillectomy - \nSelect and explain. \nA. 24 hrs, B. 6 days, C. 12 days, D. 12 hrs', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Secondary hemorrhage after tonsillectomy is seen between 5th to 10th post-operative days. Infection in tonsillar fossa is the cause of secondary hemorrhage.', 'role': 'assistant'}]