You have a Windows Server 2008 R2 that has the Active Directory Certificate Services server role installed.
You need to minimize the amount of time it takes for client computers to download a certificate revocation list
(CRL).
What should you do?

A.
Install and configure an Online Responder.

B.
Import the Issuing CA certificate into the Trusted Root Certification Authorities store on all client
workstations.

C.
Install and configure an additional domain controller.

D.
Import the Root CA certificate into the Trusted Root Certification Authorities store on all client workstations.