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
As per WHO low birth weight is defined as 
Select and explain. 
A. Gestational age < 34 weeks, B. Birth weight < 10th percentile, C. Birth weight less than 2.5 kg, D. Gestational age < 28 weeks
C: Birth weight less than 2.5 kg
Answer: C: Birth weight less than 2.5 kg 
Explanation: None