Which set of actions should the administrator perform?

An administrator needs to upgrade Files in a dark site environment without LCM,

Which set of actions should the administrator perform?
A . Setup a web server and point prism to it to fetch the bits and then click Upgrade.
B . Run any NCC checks related to Files and trigger an upgrade from Prism.
C . Download the metadata and binary bits from the portal, upload then to prism and click Upgrade.
D . Connect the cluster to the internet to perform the upgrade through prism.

Answer: C

Explanation:

https://support-portal.nutanix.com/page/documents/details?targetId=Acropolis-UpgradeGuidev5_18:Acropolis-Upgrade-Guide-v5_18