You manage a new server that runs Windows Server 2008. You plan to install the Streaming Media Services role on the server. Users will access content on the new server by using Windows Media Playerfor Windows Vista and Windows Media Player for Mac. You need to install the Streaming Media Servicesrole on the server to support both media players. What should you do？（）

• A、Install Session Initiation Protocol （SIP）.
• B、Install Simple Object Access Protocol （SOAP）.
• C、Install Stream Control Transmission Protocol （SCTP）.
• D、Install RPC over HTTPS.