Which of the following will be the BEST option for an administrator to bring VMs online at a warm site after a natural disaster has occurred at the primary site?

Kicking off a full backup is a primary site operation done to save data, not a disaster recovery step at a warm site to bring VMs online after a disaster has already occurred.

Requesting offsite backup tapes and then restoring from them is a time-consuming process that would result in a high Recovery Time Objective (RTO), which is not suitable for the faster recovery expected from a warm site.

Confirming an enterprise tape library is functional is related to tape-based recovery, which, like requesting tapes, is too slow for the faster recovery RTO typically associated with a warm site for bringing VMs online.

Verifying that replication is enabled ensures that the warm site has near-real-time or recent copies of the virtual machines and their data from the primary site. This allows for a quick failover operation where the replicated VMs can be powered on at the warm site with minimal data loss and downtime, which is the primary purpose of a warm disaster recovery site.