You have a computer that runs Windows 7. You configure the computer to automatically install all updates. You need to verify whether a specific update is installed.  What should you do?（）

• A、In Event Viewer， examine the Application log.
• B、In Windows Update， examine the update history.
• C、At the command prompt， run Wusa.exe and specify the /kb parameter.
• D、At the command prompt， run Verifier.exe and specify the /query parameter.