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': "Caisson's disease is caused due to exposure to: \nSelect and explain. \nA. Heat, B. Cold, C. Pressure, D. Noise", 'role': 'user'}, {'content': "Answer: C \nExplanation: Exposure to pressure causes Caisson's disease, air embolism. Ref: Park 21st edition page: 746.", 'role': 'assistant'}]