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: Medicine
APGAR scale in infants evaluates: 
Select and explain. 
A. Heart rate, B. Respiratory efforts, C. Body colour, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: The APGAR scale evaluates infants heart rate, respiratory effort, muscle tone, body color and reflex irritability (5 health signs).
The scale is administered within first 60 seconds after birth.
A reading of 0, 1 or 2 on each of these five health signs will be given.
A total score of 7 to 10 indicates newborn's condition is good.
A total score of 3 or below signals emergency.