Your network has a mixture of Fast Ethernet, Gigabit Ethernet, and 10 Gigabit Ethernet links.
What needs to be done to ensure optimal data routing when using OSPF?

A.
Set the priority values on every interface to ensure that the designated and backup designated
routers are the routers with the most processor and memory resources.

B.
Increase the reference-bandwidth used to calculate the interface default metrics on all routers
in your network failures.

C.
Adjust the hello and dead timers for more rapid detection of link failures.

D.
OSPF will determine the most optimal path for routing data by default.