Correct Answer: BTo achieve the necessary protection by transferring backup data from Site A to Site B, where a direct connection cannot complete within the backup window, a backup copy job is the ideal choice. This type of job allows for efficient data transfer and remote backup replication. The job should utilize components 2 (local repository at Site A), 3 (WAN accelerator at Site A), 4 (WAN accelerator at Site B), and 6 (repository at Site B). WAN accelerators help optimize data transfer over the WAN, making the process more efficient and ensuring that backups are completed within the available backup window. Proxies are not required for backup copy jobs, as WAN accelerators handle data optimization and transfer. Therefore, the correct solution is to use a backup copy job with the components 2, 3, 4, and 6.