Employees have Windows Mobile 6.5 devices. You manage the Windows Mobile devices by using Microsoft System Center Mobile Device Manager (MDM) 2008. You provision the Windows Mobile devices with the appropriate SSL certificates for the organization and devices. One day before the first root certificate authority (CA) certificate is set to expire you acquire a new root CA certificate and install it on the Windows Mobile devices. When the first root CA certificate expires, certificate-based VPN connections fail. You need to ensure that certificate-based VPN connections work properly. What should you do?

A.
Remove the original CA certificate from each Windows Mobile device.

B.
Reinstall the new CA certificate in the code-signing certificate store on the Windows Mobile devices.

C.
Acquire a wildcard CA certificate and install it on the MDM server and on the Windows
Mobile devices.

D.
Acquire a self-signed CA certificate from the MDM server and install it on the Windows Mobile devices.