This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: DNB 2018, Subject name: Social & Preventive Medicine
[{'content': 'Very low bih weight is less than:- \nSelect and explain. \nA. <1000g, B. <1500g, C. <2000g, D. <2500g', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Low bih weight (LBW)= Bih weight <2500g Very low bih weight (VLBW)= BW <1500g Extremely low bih weight (ELBW)= BW<1000g', 'role': 'assistant'}]