A corporate environment includes an on-premise deployment of Exchange Server 2010 SP1 and client computers that run Microsoft Outlook 2010. An Active Directory Domain Services (AD DS) domain named contoso.com contains user accounts for all employees. The company plans to move the mailboxes of the Sales team members to a cloud-based Exchange Server 2010 SP1 service provider. Sales team members will have primary email addresses of contoso.com and secondary email addresses of cloud.contoso.com. You need to recommend a solution for ensuring that the Autodiscover service continues to configure Outlook for all users.

What should you recommend?

A.
Create a new Autodiscover virtual directory.

B.
Run the Export-AutoDiscoverConfig cmdlet.

C.
Configure the ExternalUrl property of the Autodiscover virtual directory to autodiscover.cloud.contoso.com.

D.
Mail-enable the on-premise AD DS user accounts of the Sales team members with email addresses of cloud.contoso.com.