All the Virtual Server Instances Within an Organization's Private Cloud

Multiple Choice

All the virtual server instances within an organization's private cloud environment are having trouble logging into the Kerberos realm. Upon investigation, the CSA notices the time stamps are different on the server virtual instances. Which of the following should be the CSA's NEXT step to resolve this issue?

A) Check the Kerberos token time stamp.
B) Check the NTP server to see when it last rebooted.
C) Check the NTP server synchronization.
D) Check the virtual server time display format.