This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
What is the APGAR core for a baby with HR 120/ min, RR-40/min, strong respiratory efforts, peripheral cyanosis, grimace while suctioning and having slightly flexed posture but no active movements of limbs? 
Select and explain. 
A. 6, B. 7, C. 8, D. 9
B: 7
Answer: B: 7 
Explanation: b. 7(Ref: Nelson's 20/e p 798> Ghai 8/e p 166-168)Appearance: peripheral cyanosis, so score of 1, Pulse rate 120/minute - score 2, Grimaces - 1, Activity - 1 (flexed posture, but no movements), Respiratory effort - 2 (as strong respiratory efforts present); So, the APGAR score for this baby is: 1+2+1+1+2=7