You have a Microsoft Exchange Server 2007 environment. Several of your technicians use Microsoft Office Outlook Web Access from kiosk computers. The technicians report that they receive a message stating that their access is blocked for attachments that have the .bas file extension. You need to ensure that the technicians are able to access files that have the .bas file extension by using Outlook Web Access. What should you do?

A.
Modify the settings on the /Exchange virtual directory

B.
Clear the Enable direct file access check box for public computers

C.
Clear the Enable direct file access check box for private computers

D.
Customize the direct file access settings for public computers