请教一道英语试题?contrastcompareWhenitcomestoschooling,theHerreraboysarenomatchfortheHerreragirls.Lastweek,fouryearsaftershearrivedfromHonduras,Martha,20,graduatedfromFairfaxHighSchoolinLosAngeles.Shemanageddecen

　　请教一道英语试题?contrastcompare

　　Whenitcomestoschooling,theHerreraboysarenomatchfortheHerreragirls.Lastweek,fouryearsaftershearrivedfromHonduras,Martha,20,graduatedfromFairfaxHighSchoolinLosAngeles.Shemanageddecentgradeswhileworking36hoursaweekataKentuckyFriedChicken.Hersister,Marlin,22,attendsalocalcommunitycollegeandwillsoonbeacertifiednurseassistant.Thebrothersareadifferentstory.Oscar,17,wasexpelledtwoyearsagofromFairfaxforcarryingaknifeandlaterdroppedoutofadifferentschool.Theyoungest,Jonathan,15,isnowinajuvenilebootcampafterrunningintotroublewiththelaw."Theboysgetsidetrackedmore,"saysthekids'mother,SuyapaLandaverde."Thegirlsaremoreconfident."

　　Intheopeningparagraph,theauthorintroduceshistopicby

　　[A]posingacontrast

　　[B]justifyinganassumption

　　[C]makingacomparison

　　[D]explainingaphenomenon

　　这是印建坤考研100片上的一篇,书上答案是C,