You work as an administrator at ABC.com. The ABC.com network has an Active Directory domain named ABC.com. All servers on the ABC.com network have Windows Server 2008 R2 installed and all workstations have Windows 7 installed.

The ABC.com network has a server, named ABC-SR13, which is set up to be an enterprise root certification authority (CA). ABC.com has a Web site that authenticates by making use of x.509 certificates, and makes use many-to-one mapping.

After severing ties with an outside company, ABC.com instructs you to revoke the certificate that was supplied to them. After carrying out the task, you are instructed to make sure that the outside company is unable to log on to ABC.com’s Web site.

Which of the following actions should you take?

A.
You should consider making us of the certutil.exe command-line tool, with the �crl parameter.

B.
You should consider making us of the certutil.exe command-line tool, with the -URLCache parameter.

C.
You should consider making us of the certutil.exe command-line tool, with the -delreg parameter.

D.
You should consider making us of the certutil.exe command-line tool, with the -verifykeys parameter.