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': 'Pre-placement Examination has an important role to play in \nSelect and explain. \nA. Occupational Health, B. Energy Conservation, C. Genetic Counselling, D. Mental Health', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pre-placement Examination: Is the foundation of an efficient occupational health service. It is done at the time of\xa0employment and includes worker’s history (medical, family, occupational and social), physical examination and\xa0biological and radiological examinations.\nMain purpose of Pre-placement Examination is to place ‘the right man in right job’; so that worker can perform his\xa0duties efficiently without detriment to his health (Ergonomics).\nPre-placement Examination also serves as a useful benchmark for future comparison (examination and epidemiology).', 'role': 'assistant'}]