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': 'The 1929, Sarada act was enacted to abolish: \nSelect and explain. \nA. Dowry system, B. Child marriage, C. Sati ritual, D. Caste system', 'role': 'user'}, {'content': 'Answer: B \nExplanation: As early as 1929, the Sarada act was enacted forbidding child marriage. Ref: Park, 22nd edition pg: 446', 'role': 'assistant'}]