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
Respiratory rate in a 2 month old, to label it tachypnea is - 
Select and explain. 
A. 40, B. 50, C. 60, D. 70
C: 60
Answer: C: 60 
Explanation: Ans. is 'c' i.e., 60 Tachypnea o < 2 months --> 60 or more RR/min o 2-12 months ---> 50 or more RR/min o 12-60 months ----> 40 or more RR/min