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': '1st sign of Burst abdomen is \nSelect and explain. \nA. Bleeding at the site, B. Serpsangerinous drainage, C. Pain at the site, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Wound dehiscence is also known as Burt Abdomen. Its first sifn is serous or Serosangesinous drainage.', 'role': 'assistant'}]