Which two options are requirements to perform a migration between vCenter Server instances? (Choose two.)
A. The vCenter Server servers must be time-synchronized.
B. The ESXi hosts must be version 5.5 or later.
C. The vCenter Servers must be version 6.0 or later.
D. The vCenter Server must be in the same single Sign-On domain.
E. The ESXi hosts must have vSphere Standard, Advanced, or Enterprise Plus licensing.