Which tool should you use?

You have a computer named Computer1 that runs Windows 10.Computer1 runs the Current Branch servicing option.
Microsoft releases an upgrade to the Current Branch.
The upgrade is installed on Computer1.
You need to revert Computer1 to the previous version of the Current Branch.
Which tool should you use?

A.
Programs and Features from Control Panel

B.
Windows Update from the Settings app

C.
Recovery from the Settings app

D.
System from Control Panel