This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'When an inddividual is resting in a room with the air temperature 21degC and the humidity of 80%, the greatest amount of heat lost from body is by \nSelect and explain. \nA. Elevation of body metabolism, B. Vaporisation of sweat, C. Respiration, D. Radiation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: During intense exercise, the body loses 85% of its heat through sweating. Radiation (similar to heat leaving a woodstove). This normal process of heat moving away from the body usually occurs in air temperatures lower than 68degF (20degC). The body loses 65% of its heat through radiation. Ref: guyton and hall textbook of medical physiology 12 edition page number:867,868,869', 'role': 'assistant'}]