This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital Infections, Subject name: Pediatrics
All of these signs are included in Silverman-Anderson score except? 
Select and explain. 
A. Nasal flaring, B. Cyanosis, C. Grunting, D. Chest movements
B: Cyanosis
Answer: B: Cyanosis 
Explanation: Cyanosis is not used in SILVERMAN ANDERSON SCORE: Score Chest movement Intercostal retraction Xiphoid retraction Nasal flaring Grunt 0 Sync none none none none 1 Lag on inspiration Just visible Just visible Minimal Stethoscope 2 See-saw Marked Marked Marked naked ears Silverman Anderson Retraction Score is mostly used for preterms with HMD.