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
A newborn with respiratory distress with RR 86/ min, nasal flaring, audible grunting, abdomen lagged behind chest respiratory movement, no lower chest or xiphoid retraction. What is silverman's score – 
Select and explain. 
A. 1, B. 3, C. 5, D. 6
C: 5
Answer: C: 5 
Explanation: None