onE ChArACtEristiC oF thE riCh ClAssEs oF A DEClining soCiEty is thEir tEnDEnCy to ________.
A．tAkE in thE rECEntly wEAlthy
B．rEtrEAt within thEmsElvEs
C．proDuCE puBliCAtions on mAnnErs
D．ChAngE thE lAws oF EtiquEttE