题目内容：
根据下列材料，请回答题：TheFirstRuleofFinanceistolivewithinyourmeansbyspendingnomorethan80%ofyourtake-homepay.Ifyoutakehome$100perweek,spendnomorethan$80.Buteverlookatwhatpeoplespendtheirmoneyon?Ihaverelativesandfriendsdeeplyindebt,spending$12forevery$10theyearninsteadofthe$8youknowtheyshouldbespending.WhenIseethem,they’reproudoftheirnewwhatever.“Whatdoyouthinkofmynewtruck?”askedonefromthedriver’sseat.“Doyoulikemynewshoes?”askedanotheronhighheels.“Checkoutmynewbigscreen,”saidathirdwhileholdingtheremoteinhislivingroom.We’veallheardpeoplefishingforcomplimentsontheirnewtoys.Everyoneofthemwasproudofwhatthey’dfinanced.Theyseemtohaveboughtitforthepurposeofbeingproud,ofshowingoff,ofkeepingupwiththeJoneses.“Lookatmynew…”iseverybody’sfavoritephrase,evenwhentheobjectinquestionisn’ttheirsatallandwon’tbenewwhenthey’vefinallypaidforit,iftheyeverdo.
They’reproudofbeingstupid.Theythinkit’scooltodrivethefinancedcar,wearthefinancedshoes,andwatchthefinancedTV,buttosmartpeople,whoseopinionsaretheonlyonesweshouldrespect,thesepeoplelookdumbasrocks.
TheJoneses,ninetimesoutof10,arefinanciallystupid.That’swhytheyhaveallthatstuff,onborrowedmoney.Whytrytocopythem?Worse,whytrytoimpressthem?Copyandimpresssmartpeople,theoneswhoowntheirstuff.Ifyouwanttoimpresssmartpeople,debtisthelastwaytogoaboutit.Tryingtoimpressamoney-smartpersonbygoingintodebtisliketryingtoimpressOlympicswimmingchampionMichaelPhelpsbydrowninginapool.MichaelPhelpsisimpressedbygoodswimming,andamoney-smartpersonbygoodmoneymanagement.Accordingtotheauthor,thenewtruck,shoesandbigscreenmentionedinPara.2are________. A．indicatorsofwealth
B．necessitiestothebuyers
C．justawasteofmoney
D．examplesofshowingoff
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