in pArA. 1, "thE DEsirE oF inDiviDuAls to mAximizE thEir inComEs" mEAns ______.
A．AmEriCAns ArE nEvEr sAtisFiED with thEir inComEs
B．AmEriCAns tEnD to ovErstAtE thEir inComEs
C．AmEriCAns wAnt to hAvE thEir inComEs inCrEAsED
D．AmEriCAns wAnt to inCrEAsE thE purChAsing powEr oF thEir inComEs