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': 'What is the minimal cut off age for employment of children under the Factory Act? \nSelect and explain. \nA. 12 years, B. 14 years, C. 15 years, D. 18 years', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The Factory Act prohibits the employment of children below 14 years and declares 15 to 18 years as belonging to the adolescent group. Adolescents require fitness ceificate prior to employment in a job. Ref: Park 21st edition page: 756.', 'role': 'assistant'}]