What is the purpose of configuring the router as a PPPoE client?（）
- A to provide VPN access over L2TP
- B to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity
- C for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client software
- D for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system