John works as a Voice Technologies Administrator at company.com. His company wants a phone system that can work with a single uninterrupted power supply (UPS) instead of placing a UPS at the location of each IP phone. The company needs an uninterrupted and centralized power distribution for the IP phones without using many cords. Which of the following methods will John use to provide these facilities to his company?
A. Supply power the IP phones through an Ethernet cable (PoE).
B. Install an extension board to distribute power.
C. Place the IP phones close to UPS.
D. Install a UPS with extra ports for distribution.
