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 a single ActiveDirectory domain named testking.com. TestKing.com is configured to run in an Exchange Server 2010 environment. TestKing.com makes mostlyuse of remote users. You have received instructions from the CIO to install Microsoft Office Outlook andmobile devices for these users. You thus decide to plan the deployment of Client Access servers that will be utilized for the automatic configuration of Outlook profiles？（）

A. The best option ist to make use of Remote Access Server.
B. The best option ist to make use of Unified Messaging auto attendant.
C. The best option ist to make use of Autodiscover.
D. The best option ist to make use of MailTips.