Your network contains a SharePoint Server 2007 server farm , the farm contains a web application named http://intranet , Your company has an external web site named http://extranet , the extranet site uses form based authentication , when you open the crawl log you discover that each attempt to crawl http://extranet causes an access denied error message , you also discovered that content of http://extranet is not indexed , the content of http://intranet is indexed , you need to ensure that the content of both http://intranet and http://extranet is indexed .

What should you configure ?

A.
Crawl Rules .

B.
Search Scopes .

C.
Federated Locations .

D.
Crawler impact rules