请阅读短文，完成第小题。 Oneevening,whileMarcosUgartewasdoinghishomeworkandhisfather,Eduardo,preparedlessonplans,theyheardsomeoneyellingoutside.Eduardo,47,andMarcos,15,steppedontotheporchoftheirhomeinTroutdale,Oregon,andsawacommotionfourdoorsdown,outsidethehomeoftheirneighbors,theMafamily."Ididn'tthinkanythingwaswrong,"Eduardorecalls."!ToldMarcosweshouldgivethemsomeprivacy."Heheadedbackinside,butMarcos'seyewascaughtbyaglowfromtheMahouse. "Dad,thehouseisonfire!"Marcoscried. Cladonlyinshorts,thebarefootteensprintedtowardtheMa'shomewithhisdad.GrandmotherYimMa,motherSuzanneMa,andsonNathanMaweregatheredonthefrontlawnyellingforhelp.WhentheUgartesgotthere,theysawfatherAlexMastumblingdownthestairs,coughing,hisfaceblackwithsoot. "Isanyoneelseinthehouse?"Eduardoasked. "Myson!"Alexmanagedtosay,pointingtothesecondfloor.Eduardostartedupthestairs,butthick,blacksmoke,swirlingash,andintenseheatforcedhimtohisknees.HecrawledupstairsanddownthehallwhereAlexsaidhewouldfindCody,eight,whohadlockedhimselfinabedroom. Asthefireragedacrossthehall,Eduardobangedonthebedroomdoorandtriedtoturnthedoorknob.Codydidn'trespond.Eduardomadehiswaybackdownstairs. Meanwhile,MarcossawYimandSuzannepullinganaluminumladderoutofthegarage."Codywasstandingatthewindow,screamingforhelp,"saysMarcos."IknewIhadtodosomething."Hegrabbedtheladder,positioneditnearthewindow,andclimbedtowardtheboy. WhenMarcosreachedthewindow,hepushedthescreenintotheroomandcoaxedCodyout."It'sOK,"Marcostoldhim."I'vegotyou." HoldingCodywithonearm,Marcosdescendedtheladder. Whenfirefightersarrived,plumesofblacksmokewerebillowingfromthebackofthehouseasflamesengulfedthesecondfloor.EmergencypersonneltookCodytoanearbyhospital,wherehewastreatedforsmokeinhalationandreleased.Nooneelsewasinjured.Thecauseoftheblazeisstillunderinvestigation. "Youjustdon'tseeateenagerhavethatkindof?composure,"saysMarkMaunder,GreshamFireDepartmentbattalionchief. TheMafamilyrelocated.Thedayafterthefire,AlexvisitedMarcos."Thankyouforsavingmyson."Alexsaid."Youarehisheroforever." Whomdoestheunderlinedword"he"inPARAGRAPH5refersto?__________ 查看材料
A.Alex. B.Eduardo. C.Mareros. D.Nathan.正确答案B
