WhenyouuseMicrosoftWindowsMediaPlayertobeginplaybackofamusicfile，youreceivethefollowingerrormessageYoudonothavetherightstoplaythisfile.YouneedtoconfigureWindowsMediaPlayertoensureplaybackofprotecteddigitalmedia.Whatshouldyoudo？（）
A.DisabletheSetclockondevicesautomaticallyoption.
B.EnabletheAutomaticallycheckifprotectedfilesneedtoberefreshedoption.
C.EnabletheUpdatemusicfilesbyretrievingmediainfofromtheInternetoption.
D.EnabletheDownloadusagerightsautomaticallywhenIplayorsyncafileoption.
参考答案：D
