You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.Company.com has acquired a new client access server named -sr11.you have received instructions from the cio to make sure that the employees can access -sr11 by using outlook web app.What should you do？（）

• A、The best option is to run the Test-OwaConnectivity cmdlet in the Exchange Management Shell.
• B、The best option is to view the session state settings for the Outlook Web Access virtual directory in the Internet Information Services （IIS） Manager.
• C、The best option is to run a baseline scan in the Exchange Best Practices Analyzer.
• D、The best option is to check the properties of the default Outlook Web App mailbox policy in the Exchange Management Console （EMC）.