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
Microsomia" is defined as - 
Select and explain. 
A. Bih weight below 90th percentile, B. Bih weight below 10th percentile, C. Bih weight below 20th percentile, D. Bih weight below 50th percentile
B: Bih weight below 10th percentile
Answer: B: Bih weight below 10th percentile 
Explanation: Ans. is 'b' i.e., Bih weight below 10' percentile Microsomia means small for date baby, i.e. newborn baby with a bih weight less than 10th percentile.