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: Forensic Medicine
[{'content': 'True about reactionary hemorrhage following surgery: UP 10 \nSelect and explain. \nA. Hemorrhage occurring within 48 h, B. Hemorrhage occurring within 36 h, C. Hemorrhage occurring within 24 h, D. Hemorrhage occurring during surgery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Hemorrhage occurring within 24 h', 'role': 'assistant'}]