You work as the enterprise exchange administrator at TestKing.com. TestKing.com makes use of Microsoft Exchange Server messaging solution. The TestKing.com network consists of two offices that areconfigured as an Active Directory site named Site A and Site B. You are planning to configure an Exchange Server 2010 environment in both sites. A direct Internet connections resides from both sites with a direct link. The connection between these two sites is via a highspeed WAN link. You have received instructions from the CIO to install Exchange Server 2010 Mailboxserves in both sites. You thus need to ensure that the Hub Transport server is automatically load balancedat every site as well as ensuring that outbound e-mail messages is delivered in the event of a singleserver failure. You should also ensure that the least amound of servers is deployed. What should you do？（）

• A、The best option is to install two Hub Transport servers and create and configure one Send connector.
• B、The best option is to install one Edge Transport server and create two Send connectors.
• C、The best option is to install two Edge Transport servers and create two Send connectors.
• D、The best option is to install one Hub Transport server and create and configure one Send connector.