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: Social & Preventive Medicine
[{'content': 'Which of the following is used to measure humidity? \nSelect and explain. \nA. Kata thermometer, B. Globe thermometer, C. Sling psychrometer, D. Anemometer', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Kata thermometer - measures cooling power of air Globe thermometer - measures radiant heat Sling Psychrometer - measures humidity Anemometer - measures air velocity Ref: Park, 21st Edition, Pages 688 to 691.', 'role': 'assistant'}]