Which two clusters and EVC configurations will accomplish this?

The ability to live-migrate all virtual machines between two clusters is a requirement in the customer’s design.

Which two clusters and EVC configurations will accomplish this? (Choose two)
A . Cluster 1
• ESXi 6.0
• Intel Skylake CPUs
• EVC Enabled: AMD OpteronTM "Steamroller" Generation
Cluster 2
• ESXi 6.5
• AMD Steamroller CPUs
• EVC Enabled: AMD OpteronTM “Steamroller" Generation
B . Cluster 1
• ESXi 5.6
• Intel® Broadwell CPUs
• EVC Disabled
Cluster 2
• ESXi 6.5
• Intel® Broadwell CPUs
• EVC Disabled
C . Cluster 1
• ESXi 5.5
• AMD Piledriver CPUs
• EVC Enabled: AMD OpteronTM "Piledriver" Generation
Cluster 2
• ESXi 6.5
• AMD Steamroller CPUs
• EVC Enabled: AMD OpteronTM “Piledriver" Generation
D . Cluster 1
• ESXi 6.5
• Intel Broadwell CPUs
• EVC Enabled: Intel® “Broadwell" Generation
Cluster 2
• ESXi 6.5
• Intel Sandy Bridge CPUs
• EVC Enabled: Intel® “Sandy Bridge" Generation