You work as an IT professional in an international corporation named Wiikigo. In the company, your job is to configure Microsoft Internet Security and Acceleration Server 2006. And you are experienced in performing and managing networks and operational systems. In addition, you are skilled at deploying ISA Server 2006, configuring firewall settings, and optimizing performance of the ISA Server 2006 cache. The company installs ISA Server 2006 as its firewall. Microsoft Outlook 2003 is run by all of the company’s portable computers. According to the company’s written security policy, the company wants to have all e-mail communications to the Microsoft Exchange Server 2003 computer over the Internet encrypted. You are required to make sure that Outlook 2003 should be utilized by all employees, no matter e-mail in the office is utilized or e-mail remotely over the Internet is utilized. Which action should be configured?

A.
Microsoft Outlook Web Access should be set on an internal server. And then, an HTTP Web publishing rule should be set to direct traffic to the Exchange Server computer.

B.
An RPC Proxy server should be set. And then, a server publishing rule should be created to direct all Exchange RPC traffic to the RPC Proxy server.

C.
An RPC Proxy server should be set. And then, an HTTPS Web publishing rule should be created to direct traffic to the RPC Proxy server.

D.
Microsoft Outlook Web Access should be set on an internal server. And then, an HTTPS Web publishing rule should be set to direct traffic to the Exchange Server computer.