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.
Explanation:
https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.vcenterhost.doc/GUIDDAD0C40A-7F66-44CF-B6E8-43A0153ABE81.html
A and C
https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.vcenterhost.doc/GUID-DAD0C40A-7F66-44CF-B6E8-43A0153ABE81.html
A And C
https://kb.vmware.com/s/article/2106952