You have a server that runs Windows Server 2008 R2. The server has the Web Server (IIS) server role installed.
The server contains a Web site that is configured to use only Windows Authentication. You have a security group named Group1 that contains several user accounts. You need to prevent the members of Group1 from accessing a Web site. You must not prevent other users from accessing the Web site.
Which Web site feature should you configure?

A.
Authentication

B.
Authorization Rules

C.
IIS Manager Permissions

D.
SSL Settings