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: Pediatrics
Low birth weight is defined as 
Select and explain. 
A. Weight < 10 percentile for their gastational age, B. Weight < 2.0 kg, C. Weight < 1.5 kg, D. Weight < 2.5 kg
D: Weight < 2.5 kg
Answer: D: Weight < 2.5 kg 
Explanation: Low birth weight (LBW) neonate- A neonate weighing less than 2500g at birth irrespective of the gestational age.
Very low birthweight (VLBW) neonate- A neonate weighing leas than 1500g at birth irrespective of the gestational age.
Extremely low birth weight (ELBW) neonate- A neonate weighing leas than 1000g at birth irrespective of the gestational age.