Which option would explain why servers become unavailable during a vRealize Automation installation when the install wizard is fixing the prerequisites on the Windows IaaS servers?

A. One or more of the fixes for the prerequisi

tes requires a reboot.

B. IPSec must be disabled on all Windows systems to prevent connection issues.

C. The vRA appliance disconnects the servers as part of the registration.

D. The IaaS integration service must be restarted due to instability.