Your company has a custom Web application that uses a self-signed SSL certificate. The company has an internal certification authority (CA) and uses autoenrollment. When external users attempt to start the Web application, Internet Explorer displays an error message that recommends closing the Web page rather than continuing to the application. You need to ensure that Internet Explorer does not display the error message. What should you do?

A.
Install the current certificate into the personal store on each client computer. Add the applications URL to the Trusted Sites zone in Internet Explorer.

B.
Install the current certificate into the computer store on each client computer.

C.
Purchase and install a commercial certificate on the CA server. Ensure that users trust the issuing CA.

D.
Issue a root certificate from the internal CA on the external users computers.