Refer to the exhibit. EIGRP is configured on all routers in the network. On a basis of the show ip eigrp topology output provided, what conclusion can be derived?()<br /> <img src="https://nimg.ppkao.com/2018-07/yiyu/201807301045145834.jpg?sign=f0d9a5f9ed205188a4495a15ffeffb4e&t=62d443d5" /><br />
A、Router R1 is waiting for a reply from the neighbor 10.1.2.1 to the hello message sent out inquiring for a second successor to network 10.6.1.0/24.
B、Router R1 can send traffic destined for network 10.6.1.0/24 out of interface FastEthernet0/0.
C、Router R1 is waiting for a reply from the neighb or 10.1.2.1 to the hello message sent out before it declares the neighbor unreachable.
D、Router R1 is waiting for a reply from the neighbor 10.1.2.1 in response to the query sent out about network 10.6.1.0/24.