What option should an administrator select to migrate a powered-off virtual machine to another cluster without shared storage?

To migrate a powered-off virtual machine to another cluster without shared storage, selecting the option to change both compute resource and storage is the correct approach because it allows for a full relocation of the virtual machine to a new host along with its associated storage.

When a virtual machine is powered off, it can be moved to a different host (compute resource) and, in cases where storage is not shared, its virtual disks must also be transferred to the new storage. This means that you would need to not only select a new compute resource – which in this case refers to the new cluster – but you also need to specify a new storage location for the virtual machine's files. This is necessary because, without shared storage, the virtual machine's files will not be accessible in the new cluster unless they are relocated to storage that the new compute resource can access.

Choosing the other options would not suffice for this scenario. Changing just the compute resource would leave the virtual machine's storage behind in the original cluster, making it inaccessible. Selecting the option to migrate the virtual machine to a specific data center does not specifically address the need to change both the compute and storage resources, which is essential when moving across clusters without shared storage. Finally, changing storage only would not be adequate