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': 'Antemortem blister differs from postmortem blister by - \nSelect and explain. \nA. Presence of Albumin & Chloride in blister fluid, B. Gas in blister, C. Dry hard surface of the floor of blister (Punctured), D. Absence of hyperemia around the blister', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]