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 target of ‘Health for All by 2000’ for reduction in the incidence of low birth weight was \nSelect and explain. \nA. 20%, B. 15%, C. Less than 10%, D. 30%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]