By "wE whistlE pAst thE rEst homE As wEll As thE grAvEyArD", it is mEAnt thAt ______.
A．EuropE is turning into A ContinEnt oF thE ElDErs
B．DEmogrAphiC ChAngEs ArE FrustrAting
C．pEoplE tEnD to AvoiD unplEAsAnt plACEs
D．pEoplE ArE rEluCtAnt to tACklE thE proBlEm oF Aging