ISA Server 2006 is installed as your companys firewall. All of the companys portable computers run Microsoft Outlook 2003. The companys written security policy states that all e-mail communications to the Microsoft Exchange Server 2003 computer over the Internet must be encrypted. You need to ensure that all employees use Outlook 2003, whether they use e-mail in the office or use e-mail remotely over the Internet. What should you do?

A.
Configure Microsoft Outlook Web Access on an internal server. Configure an HTTPS Web publishing rule to direct traffic to the Exchange Server computer.

B.
Configure Microsoft Outlook Web Access on an internal server. Configure an HTTP Web publishing rule to direct traffic to the Exchange Server computer.

C.
Configure an RPC Proxy server. Create a server publishing rule to direct all Exchange RPC traffic to the RPC Proxy server.

D.
Configure an RPC Proxy server. Create an HTTPS Web publishing rule to direct traffic to the RPC Proxy server.