Your network contains an Active Directory domain named contoso.com.  You have a management computer named Computer1 that runs Windows 7.   You need to forward the logon events of all the domain controllers in contoso.com to Computer1. All new  domain controllers must be dynamically added to the subscription.   What should you do（）

• A、From Computer1， configure source-initiated event subscriptions. From a Group Policy object （GPO）  linked to the Domain Controllers organizational unit （OU）， configure the Event Forwarding node.
• B、From Computer1， configure collector-initiated event subscriptions. From a Group Policy object （GPO）  linked to the Domain Controllers organizational unit （OU）， configure the Event Forwarding node.
• C、From Computer1， configure source-initiated event subscriptions. Install a serverauthentication  certificate on Computer1. Implement autoenrollment for the Domain Controllers organizational unit （OU）.
• D、From Computer1， configure collector-initiated event subscriptions. Install a server authentication  certificate on Computer1. Implement autoenrollment for the Domain Controllers organizational unit （OU）.