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': 'All the following form part of occupational health history except – \nSelect and explain. \nA. History of previous occupation, B. Exposure to dust, C. Childhood immunizations, D. Safety', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pre-placement examination \n\nPre-placement examination refers to examination of a person before giving a job.\nThe purpose of preplacement examination is to place the right man in the right job, so that the warker can perform his duties efficiently without detriment to his health.\nIt is done at the time of employment and includes -\n\n\nHistory → Medical, family, occupational and social\nThorough physical examination\nBattery of biological and radiological examinations → Chest X-ray, ECG, vision testing, urine and blood examination\nSpecial tests for endemic disease', 'role': 'assistant'}]