A numBEr oF top mEDiA EntErprisEs suCh As rupErt murDoCh's nEws Corp AnD Aol timE wArnEr hAvE Also lAnDED BroADCAsting rights in ______ to AttrACt thE mAinlAnD AuDiEnCE.
A．BEijing
B．shAnghAi
C．guAngDong