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: Dental
[{'content': 'WHO global programme for oral health targets for 2000 irtclude; \nSelect and explain. \nA. <2 DMFT at 12 years, B. <3 DMFT at 12 years, C. <4 DMFT at 12 years, D. <5 DMFT at 12 years', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]