thE 4^th pArAgrAph suggEsts thAt _______.
A．quEstions ArE oFtEn put to thE morE intElligEnt stuDEnts
B．AlphABEtiCAlly DisADvAntAgED stuDEnts oFtEn EsCApE From ClAss
C．tEAChErs shoulD pAy AttEntion to All oF thEir stuDEnts
D．stuDEnts shoulD BE sEAtED ACCorDing to thEir EyEsight