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': 'Heat stiffening in muscles occurs above temperature (°C) - \nSelect and explain. \nA. 30, B. 40, C. 50, D. 60', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Heat stiffening or heat coagulation is found in bodies exposed to heat i.e. temperatures above 65°C (Reddy)/70°C (Parikh) as is seen in death due to burning, high voltage electrocution (electric shock), or falling into hot liquid.', 'role': 'assistant'}]