You are a consumer support technician. A user opens a Web page by using Microsoft Internet Explorer 7. The Web page has a revoked certificate, but the computer fails to display any warning messages. Earlier, the computer displayed warning messages every time the user opened a Web page that had a revoked certificate.

The user configures the Internet Explorer 7 advanced settings to enable verification of the server certificate revocation. The user then refreshes the opened Web page.

The user is still able to view the Web page without any warning messages. The user opens the Web page on a new tab but still does not receive any warning messages.

You need to configure the computer to ensure that server certificates are verified for revocation.

What should you do?

A.
Restart the Certificate Propagation service.

B.
Clear the Domain Name System (DNS) resolver cache.

C.
Enable the SSL 3.0 advanced option in Internet Explorer 7.

D.
Close all the Internet Explorer 7 windows that the user opened.