You need to restore the computer to its previous functional state

You install an application named app1.exe on a computer
After the installation the computer becomes unresponsive.
You restart the computer and attempt to uninstall App1.exe. The uninstallation of App1.exe fails.
You need to restore the computer to its previous functional state. You must achieve the goal by
using the minimum amount of administration.
What should you do?

A.
From Recovery, restore a system restore point.

B.
From the Previous Versions tab of App1.exe, click Restore button.

C.
Start the computer, press F8 and then use the Last Known Good Configuration.

D.
Create a system repair disc and then start the computer from the system repair disc.

Explanation:
If you install an application that causes your computer to become unstable, you should first attempt
to uninstall the application. If this does not solve the problem, you can restore system files and
settings by performing a system restore to restore the computer to its last system restore point. A

system restore returns a computer system to a selected restore point. System restores do not alter
user files. Note that a system restore is not the same as a System Image restore.
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Windows 7 creates system restore points on a regular schedule and prior to events such as the
installation of applications and drivers. A restore point contains information about registry settings
and other system information. Windows 7 generates restore points automatically before
implementing significant system changes. You can manually create restore points and restore a
computer system to a selected restore point.
If you install an application or driver that causes your computer to become unstable, you should first
attempt to uninstall the application or roll back the driver. If this does not solve the problem, you
can restore system files and settings by performing a system restore to restore the computer to its
last system restore point. A system restore returns a computer system to a selected restore point.
System restores do not alter user files. Note that a system restore is not the same as a System Image
restore.