Given ((diagram with R1 SLA config)) with configuration written on Picture as
R(Config)#ip sla 1
R1(Config-ip-sla)#icmp-echo 172.20.20.2 source-interface f1/0
R1(Config-ip-sla)#frequency 10
R1(Config-ip-sla)#threshold 100
R1(Config)#ip sla schedule 1 start-time now life forever
R1(Config)#track 10 ip sla ???-
R1(Config)#ip route 0.0.0.0.0 0.0.0.0 172.20.20.2
What make default route not removed when SLA state down or failed?
A. The destination must be 172.30.30.2 for icmp-echo
B. The threshold value is wrong
C. Pending
D. Missing of track feature on default static route command
