After adding a French language pack to each session host, the language pack was later removed and hosts reverted to English. To ensure the French language pack remains available on session hosts, what should you do?

The correct answer is to apply a Group Policy setting that blocks the cleanup of unused language packs. Windows automatically cleans up unused language packs to save disk space. If a language pack is installed but not actively used by any user profile, it can be removed during this cleanup process. By blocking this cleanup, you ensure that the French language pack remains installed and available for users even if it's not immediately active. Configuring international settings on each host or assigning a default time zone will not prevent the system from removing unused language packs. Applying a Group Policy setting to disable Time & language settings would prevent users from changing language settings, but wouldn't stop the system from uninstalling an unused language pack.