You have a SharePoint Server 2010 server farm that contains one Web server. The Web server has only one IP address. You plan to implement the following Web applications:
http://portal.contoso.com .http://intranet.contoso.com .http://www.contoso.com You need to recommend a solution to ensure that users can access all three Web applications. What should you include in the solution?
A. Host headers
B. Handler mappings
C. Extended zones
D. Alternate access mappings
