Explanation/Reference:
We see that the entry for 192.168.93.0/3 with next hop 10.66.24.88 is marked with an R, it is an RIP route.
There is also an entry for 192.168.93.0/3 with next hop 10.66.24.93 with active OSPF intra-area route (Oi Int).
By lowering the Administrative Distance for RIP to a value lower than OSPF the entry with next hop
10.66.24.88 will be preferred.
Note: The best route is then selected among them based on Administrative Distance (AD) value of routing protocols which routes came from and that route is marked with flag A, stating that it is the Active route.
Administrative distance (AD) is an arbitrary numerical value assigned to dynamic routes, static routes and directly-connected routes. The value is used by vendor-specific routers to rank routes from most preferred to least preferred. When multiple paths to the same destination are available, the router uses the route with the lowest administrative distance and inserts the preferred route into its routing table.
References: https://live.paloaltonetworks.com/t5/Management-Articles/Routing-Table-has-Multiple- Prefixes-for-the-Same-Route/ta-p/54781