thE sEConD pArAgrAph oF thE pAssAgE suggEsts ______.
A．onE shoulD lEAvE his grown-up ChilDrEn to livE on thEir own As EArly As possiBlE
B．too muCh ConCErn For grown-up ChilDrEn mAy likEly mAkE you A BurDEn to thEm
C．nowADAys grown-up ChilDrEn ArE usuAlly inDiFFErEnt to thEir pArEnts AnD grAnDpArEnts
D．moDEm grown-up ChilDrEn wAnt to livE A DiFFErEnt liFE BECAusE timE hAs ChAngED