thE morAl DEClinE oF AmEriCAn soCiEty is CAusED mAinly By ______.
A．its growing wEAlth
B．thE sElF-CEntErEDnEss oF inDiviDuAls
C．unDErEstimAting thE impACt oF soCiAl ChAngEs
D．thE prEjuDiCE AgAinst womEn AnD minoritiEs