You administer a Windows 2000 Professional computer that is shared by multiple users. You receive a phone call from one of the users of the shared computer that tells you that the computer is reporting a kernel stop error. You notice that a user has tried to install video drivers that have caused the computer to become unstable. You want to ensure that users can install only the drivers that are approved by the manufacturer. What should you do? （）
- AConfigure File signature verification to block driver installation， and set driver signing as a system default.
- BRemove all users from the Power User group.
- CCreate a Local Computer Policy to prevent users from installing drivers.
- DCreate a Local Computer Policy to enable Windows File Protection.