Refer to the exhibit. A router learns a route to the 192.168.6.0 network, as shown in the output of the show IP RIP database command. However, upon running the show IP route command, the network administrator sees that the router has installed a different route to the 192.168.6.0 network learned via EIGRP. What could be the reason for the missing RIP route?

Routers use administrative distance (AD) as the tiebreaker when multiple routing protocols provide routes to the same destination. EIGRP has a default AD of 90, while RIP has AD 120. The router will always prefer the route with the lower administrative distance, which is why the EIGRP route was installed over the RIP route. Option B is incorrect because RIP's metric (hop count) is only compared when both routes are from the same protocol.