Which two Virtual SAN related actions might start resyn…

Which two Virtual SAN related actions might start resynchronization of virtual machine objects? (Choose two.)

A.
Editing a virtual machine storage policy to increase the number of replicas.

B.
Editing a virtual machine storage policy to reduce the number of replicas.

C.
Editing a virtual machine storage policy to increase the number of disk stripes.

D.
Editing a virtual machine storage policy to reduce the number of disk stripes.

Explanation:
Editing a virtual machine storage policy to increase the number of replicas and the number of disk stripes with start resync of virtual machine objects.
https://www.vmware.com/support/vsphere6/doc/vmware-virtual-san-60-release-notes.html