All oF thE Following stAtEmEnts ABout pAttErn ⅱ ChilDrEn ExprEss DiFFErEnCEsExCEpt ______.
A、thEy migrAtE For pArt oF EACh yEAr
B．thEy spEnD lEss timE ContriButing to FAmily inComE
C．thEy spEnD morE months on sChool
D．thEir pArEnts somEtimEs work At joBs rAthEr thAn FAnning