Fiveyearsago,DavidSmithworeanexpensivesuittoworkeveryday．"Iwasaclothesaddict,"hejokes．"IusedtocarryafreshsuittoworkwithmesoIcouldchangeifmyclothesgotwrinkled．"TodayDavidwearscasualclothes--khakipantsandasportsshirttotheoffice．Hehardlyeverwearsanecktie．"I'mworkingharderthanever,"Davidsays,"andIneedtofeelcomfortable．" Moreandmorecompaniesareallowingtheirofficeworkerstowearcasualclothestowork．IntheUnitedStates,thechangesfromformaltocasualofficewearhavebeenslow．Intheearly1990s,manycompaniesallowedtheirworkerstowearcasualclothesonFriday(butonlyonFriday)．Thisbecameknownas"dress-downFriday"or"casualFriday"．"Whatstartedoutasanextraone-day-a-weekbenefitforworkershasreallybecomeaneverydaything．"saidbusinessadviserMaislyJones． Whyhavesomanycompaniesstartedallowingtheirworkerstowearcasualclothes'Onereasonisthatit'seasierforacompanytoattractnewworkersifithasacasualdresscode．"Alotofyoungpeopledon'twanttodressupforwork,"saystheownerofasoftwarecompany,"soit'shardtohirepeopleifyouhaveaconservativedresscode．"Anotherreasonisthatpeopleseemhappierandmoreproductivewhentheyarewearingcomfortableclothes．InastudymadebyLeviStraussandCompany,85percentofemployerssaidthatcasualdresshasasideeffectonwork．Supportersofcasualofficewearalsosaythatacasualdresscodehelpsthemsavemoney．"Suitsareexpensive,ifyouhavetowearoneeveryday,"onepersonsaid．"Forthesameamountofmoney,youcanbuyalotmorecasualclothes．" DavidSmithwearscasualclothesnow,because______
A.they make him feel at ease when working B.he cannot afford to buy expensive clothes C.he looks handsome in casual clothes D.he no longer works for any company正确答案A
