whiCh oF thE Following is not truE, ACCorDing to thE pAssAgE you hAvE just hEArD
A．thE Author AssErts thAt BAnk-issuED CrEDit CArDs CAn BE AutomAtiCAlly usED.
B．thE Author AssErts thAt thE unitED stAtEs oF AmEriCA is AlrEADy A CAshlEss soCiEty.
C．thE Author BEliEvEs thAt nowADAys mAny AvAilABlE BAnking sErviCEs Ar ConvEniEnCEs.
D．thE Author AssumEs thAt mAnuFACturErs, proCEssors AnD suppliErs All rEly on ComputEr.