Your network contains a SharePoint Server 2007 server farm , the farm contains a Web application named http://Web1 , you view the authentication provider , you need to configure the internet zone of http://Web1 to use basic authentication and the default zone of the http://Web1 to use windows authentiction .

What should you do first ?

A.
Extrend the web application.

B.
Modify the policy for web application settings .

C.
Modify the default zone .

D.
Add an Alternate Access Mapping.