Your company has an Active Directory domain. All servers run Windows Server 2008. You deploy a Certification Authority （CA） server. You create a new global security group named CertIssuers. You need to ensure that members of the CertIssuers group can issue， approve， and revoke certificates. What should you do（）

• A、Assign the Certificate Manager role to the CertIssuers group.
• B、Place CertIssuers group in the Certificate Publisher group
• C、Run the certsrv -add CertIssuers command promt of the certificate server
• D、Run the add -member-membertype memberset CertIssuers command by using Microsoft WindowsPowershell