Currently, a Cisco IOS XR router is configured to send IP SLA probes to a network management station that is acting as t

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Currently, a Cisco IOS XR router is configured to send IP SLA probes to a network management station that is acting as the IP SLA target device. How can IP
SLA measurement accuracy be improved and also provide additional statistics?

A. Use ICMP echo probes instead of UDP echo probes.
B. Configure another Cisco router as the target and enable that other Cisco router for IP SLA Responder operations.
C. Increase the rate (frequency) at which a specified IP SLA operation is sent into the network.
D. Use UDP echo probes instead of ICMP echo probes and enable UDP echo service on the target network management station.
E. Enable IP SLA Responder service on the target network management station.