What are two possible causes of Storage Distributed Resource Scheduler (SDRS) being disabled on one or more virtual machine disks in a datastore cluster?
(Choose two.)

A.
The virtual machine has vSphere Fault Tolerance disabled.

B.
The virtual machine is a template.

C.
The virtual machine swap file is on a shared datastore.

D.
The disk is a CD-ROM/ISO file.

Explanation:
Possible causes of SDRS being disabled might be related to the fact that the virtual machine is a template or the disk is a CD-ROM or an ISO file.
https://www.vmware.com/files/pdf/vmw-vsphr-5-1-stor-drs-uslet-101-web.pdf