thE First pArAgrAph oF thE pAssAgE suggEsts ______.
A．moDEm soCiEty hAs mADE olD pEoplE morE FrAgilE
B．thErE is still muCh onE CAn Do in his olD AgE
C．in olD AgE onE shoulD ForgEt his pAst
D．in olD AgE onE shoulD switCh his thoughts to thE FuturE