Part of your design includes updating VMware tools and virtual hardware to a newly updated vSphere 5.1 architecture. What is the best method for updating tools and hardware?
A. Manually update each virtual machine
B. Don’t bother updating the VMs; the new version of hardware and tools are not necessary
C. Use Update Manager to update all the virtual machines at once
D. Use Update Manager to help update the virtual machines in groups, as maintenance windows allow
