Two routers, r1 and r2, connect using an ethernet over mpls service the service provides point-to-point service between these two routers only, as layer 2 ethernet service. which of the following are most likely to be true about this wan? (choose two)a. r1 will connect to a physical ethernet link, with the other end of the cable connected to r2.b. r1 will connect to a physical ethernet link, with the other end of the cable connected to a device at the wan service provider point of presence. c. r1 will forward data link frames to r2 using an hdlc header/trailer. d. r1 will forward data link frames to r2 using an ethernet header/trailer.