An administrator needs to migrate a powered off virtual machine to another cluster with no shared storage. What option should be selected?

When migrating a powered-off virtual machine to another cluster without shared storage, selecting the option to change both the compute resource and storage is appropriate because the virtual machine needs to be relocated entirely to a new host (compute resource) along with its associated disk files (storage). Since there is no shared storage between the two clusters, the virtual machine's disks cannot be preserved in their current storage locations.

This option allows the administrator to specify a new datastore in the target cluster where the virtual machine will reside after the migration. This dual change ensures that both the compute resources (the ESXi host in the new cluster) and the storage location (the datastore for the virtual machine's files) are updated to reflect the new environment.

The other options would not suffice in this scenario because simply changing the compute resource without addressing storage would leave the virtual machine without its disk files, making it non-functional. The option to migrate to a specific datacenter is also not relevant as it does not directly address the need to change storage along with the compute resource. Lastly, changing storage only is impractical due to the powered-off state and the absence of shared storage, as it does not encompass the need to move to a different cluster.