After DUAL calculations, a router has identified a successor route, but no routes have
qualified as a feasible successor. In the event that the current successor goes down, what
process will EIGRP use in the selection of a new successor?

A.
EIGRP will find the interface with the lowest MAC address

B.
The route will transition to the active state

C.
The route will transition to the passive state

D.
EIGRP will automatically use the route with the lowest feasible distance(FD)

E.
EIGRP will automatically use the route with the lowest advertised distance(AD)

Explanation:
When a route (current successor) goes down, the router first checks its topology table for a
feasible successor but it can’t find one. So it goes active on the that route to find a new
successor by sending queries out to its neighbors requesting a path to the lost route.