Which command-line interface command can the administrator use to complete this task?

Scenario: A Citrix Administrator is deploying a NetScaler device and would like to add the NTP server to this appliance. Currently, the NTP service is configured at 192.168.55.54.

Which command-line interface command can the administrator use to complete this task?
A . Add ntp server 192.168.55.54
B . Add server ntp 192.168.55.54
C . Add servicegroup NTP UDP
D . Add service NTP 192.168.55.54 UDP 123

Answer: A

Explanation:

Reference: https://support.citrix.com/article/CTX120952