What is the behavior of the Isilon time and date settings and what is the best practice?

What is the behavior of the Isilon time and date settings and what is the best practice?
A . SMB time sync takes precedence over the NTP service
SMB time is enabled by default on the cluster
Best Practice: do not use SMB time, use NTP for cluster and Domain Controller
B . NTP service takes precedence over SMB time sync
SMB time is enabled by default on the cluster
Best Practice: do not use NTP time, use SMB for cluster and Domain Controller
C . NTP service takes precedence over SMB time sync
SMB time is enabled by default on the cluster
Best Practice: do not use SMB time, use NTP for cluster and Domain Controller
D . SMB time sync takes precedence over the NTP service
SMB time is not enabled by default on the cluster
Best Practice: do not use NTP time, use SMB for cluster and Domain Controller

View Answer

Answer: C