Your network contains a server that runs Windows Server 2008 R2. You need to install the Streaming Media Services role on the server.
What should you do first?
A.
Download and install Windows Media Encoder 9 Series x64 Edition.
B.
Download and install Windows Media Services 2008 for Windows Server 2008 R2.
C.
From Server Manager, click Check for new roles.
D.
From Server Manager, install the Quality Windows Audio Video Experience (qWave) feature.