ACCorDing to thE Author, thE ChAngE to A nAtionwiDE BAnking systEm shoulD BE __________.
A．postponED until thE ConsEquEnCEs CAn BE EvAluAtED
B．grADuAl so thAt rEgionAl BAnks hAvE A ChAnCE to CompEtE with lArgEr BAnks
C．immEDiAtE BECAusE wE CAn't AFForD Any morE BAnk FAilurEs
D．muCh FAstEr to ovErComE lEgislAtivE FEAr