which setting should the vSphere administrator change in the virtual machine’s disk format to ensure it meets Fault Tolerance requirements?

A vSphere administrator needs to enable Fault Tolerance on a virtual machine.
When performing a Storage vMotion migration, which setting should the vSphere administrator
change in the virtual machine’s disk format to ensure it meets Fault Tolerance requirements?

A.
Thick Provision Eager Zeroed

B.
Thick Provision Lazy Zeroed