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': 'What postmortem examination should be carried on dead rats during the course of an experiment? \nSelect and explain. \nA. morphological aspect, B. kidney., C. tissular damage, D. Brain tissue', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]