Refer to the exhibit. Which command enables the stateful failover option?

A.
failover link MYFAILOVER GigabitEthernetO/2

B.
failover Ian interface MYFAILOVER GigabitEthernetO/2
C failover interface ip MYFAILOVER 172.16.5.1 255.255.255.0 standby 172.16.5.10

C.
preempt

D.
failover group 1 primary

E.
failover Ian unit primary