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': 'Which is the first site of rigor mortis? \nSelect and explain. \nA. Fingers, B. Toes, C. Myocardium, D. Eyelids', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Myocardium is the first site of rigor mortis. Eyelids are the first visible site of rigor mortis.', 'role': 'assistant'}]