Answer:
The answer is PoE+.
Explanation:
PoE (Power Of Ethernet) is a method that is widely used everywhere where there is an internet connection needed because of its ability of being able to deliver both power and the internet connection from the same line. The different PoE types are selected according to the amount of voltage that is needed to be delivered.
In the example given in the question, ABC is adding a Wi-Fi network through PoE Ethernet Switches in "wiring closets" which is where the power is added to the line. The type of PoE implementation used is PoE+ which provides higher power because it is going through the wiring closets.
I hope this answer helps.
