Given the set of routers, each with an interface on the same multi-access network:<br /> <img src="https://nimg.ppkao.com/2018-08/gelingxia/2018080817522341957.jpg?sign=c1b49942d88eb0130017ecf8ae7b7e82&t=62d06a68" /><br /> Which router can never be a designated router on that multi-access network?()
A、RouterA
B、RouterB
C、RouterC
D、RouterD