A corporate environment will include Exchange Server 2010 in two Active Directory Domain Services (AD DS) sites. You need to recommend a solution that provides a single connection point for all Outlook Web App (OWA) connections.

What should you recommend?

A.
Deploy one Client Access server array.

B.
Deploy one Client Access server array for each AD DS site.

C.
Configure a hardware load balancer for the Client Access servers.

D.
Configure Autodiscover in each AD DS site for a common internal URL.