The Apgar score is a scoring system that assesses the condition of the newborn at one and five minutes after birth based on five parameters: activity, pulse, grimace, appearance, and respiration. Each parameter is given a score of 0, 1, or 2, with a maximum total score of 10. A score of 7 to 10 is considered normal, a score of 4 to 6 is moderately abnormal, and a score of 0 to 3 is severely abnormal.

In this case, the newborn has no respiratory effort, no heart rate, no muscle tone, no reflex irritability, and is blue all over his body.

Therefore, he would receive a score of 0 for each parameter, resulting in a total Apgar score of 0.

Choice B is wrong because a score of 1 means that the newborn has at least one parameter with a score of 1. For example, if the newborn has a heart rate of less than 100 beats per minute but no other signs of life, he would receive a score of 1 for pulse and 0 for the rest, resulting in a total Apgar score of 1.

Choice C is wrong because a score of 2 means that the newborn has at least one parameter with a score of 2 or two parameters with a score of 1.

For example, if the newborn has a heart rate of more than 100 beats per minute and some