You have an Active Directory Domain Service $($AD DS$)$ domain that contains a server named Server$1.$ Server$1$ runs Windows Server and is in the perimeter network.

You need to configure Server$1$ as web application proxy.

Which role must you add to the network first?

Select only one answer.

Active Directory Certificate Services

Active Directory Federation Services

Network Controller

Network Policy and Access Services

Web Server $($IIS$)$