An engineer is concerned with the deployment of a new application that is sensitive to inter-packet delay variance. Which command configures the router to be the destination of jitter measurements?

A.	Router(config)# ip sla responder udp-connect 172.29.139.134 5000
B.	Router(config)# ip sla responder tcp-connect 172.29.139.134 5000
C.	Router(config)# ip sla responder udp-echo 172.29.139.134 5000
D.	Router(config)# ip sla responder tcp-echo 172.29.139.134 5000