This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Maternal and child care, Subject name: Social & Preventive Medicine
[{'content': 'As per WHO, low bih weight is defined as \nSelect and explain. \nA. Bih weight less than 2.5kg, B. Bih weight less than 10th percentile, C. Gestational age less than 28weeks, D. Gestational age less than 34 weeks', 'role': 'user'}, {'content': 'Answer: A \nExplanation: An LBW infant is an infant with a bih weight of less than 2.5 kg regardless of gestational age. It includesa) Preterm babiesb) Small for date babiespark 23e pg: 536', 'role': 'assistant'}]