Which of the Following BEST Describes the Concept of Right

Multiple Choice

Which of the following BEST describes the concept of right to downgrade?

A) It allows for the return of a new OS license if the newer OS is not compatible with the currently installed software and is returning to the previously used OS
B) It allows a server to run on fewer resources than what is outlined in the minimum requirements document without purchasing a license
C) It allows for a previous version of an OS to be deployed in a test environment for each current license that is purchased
D) It allows a previous version of an OS to be installed and covered by the same license as the newer version