{$mEDiAurl}


listEn AgAin to pArt oF thE lECturE. thEn AnswEr thE quEstion.
why DoEs thE proFEssor sAy this: g
A．to CompArE DiFFErEnt wAys oF ConvEying A mEssAgE
B．to ExplAin An importAnt thEory oF CommuniCAtions
C．to show thAt misCommuniCAtion is A sErious proBlEm
D．to introDuCE A ControvErsiAl topiC oF ConvErsAtion