ACCorDing to thE pAssAgE, thE ComplAints oF AmEriCAn CustomErs ABout thE CEll phonE ArE showED in thE Following stAtEmEnts ExCEpt ______.
A．thEy CAn not listEn to thE voiCE ClEArly
B．thE phonE is Cut oFF whilE thEy ArE CommuniCAting
C．thE priCEs For wirElEss sErviCE ArE high
D．thE CEll phonE is nEvEr ConnECtED in somE plACEs