题目内容：
Questionsarebasedonthefollowingpassage.
Thehousingmarketexitedthetraumaward(急救室)in2013.Pricesroseasmuchas30percentinsomeareas,biddingwarsbrokeoutandtheforeclosurerate(丧失赎取率)halvedfi'omitspeak.Butthepatientisbynomeansfullyrecovered.Infact,fiveyearsafterthehousingbubblecollapsed,oneinfivemortgageholdersstillowemorethantheirhomeisworth.
AtitsWorstinearly2012,almost16millionAmericanswereunderwaterontheirmortgage.Insomeofthehardesthitneighborhoods,suchasLasVegas,Phoenix,andDetroit,70percentofhomeownersowedmorethanthevalueoftheirhome.Sincethen,risinghomepriceshavepushed5millionhomeownersbackintotheblack,but11millionoutofatotalof50millionmortgageholdersremaininwhatfinancialfolkscallanegativeequity(负资产)position."Thisisthenewnormalinthehousingmarket,"saidSvenjaGudell,directorofeconomicresearchatZillow,anonlinerealestatedatabase,"Wewillhavehighlevelsofnegativeequityforsometime."
Withmortgageratesrisingandexpectedtohit5percentlatenextyear,manyeconomistspredictacontinuousdownturninhousingmarketin2014.Thatmeanspricegainsshouldmoderateanditcouldtakeawhilelongerforhomeownerswhoareunderwatertorecover.Outofthe75millionhomeownersinAmerica,aboutoneinsevenstaytrappedintheirhomes,unabletomoveorsell.
Housingpriceshavegoneupanddownoverthedecades,butuntilthefinancialcrisisof2008,itwasraretooweabankmorethanahomeisworth.Forallofthe19thcenturyandevenduringtheGreatDepression,thiswasvirtuallyunheardof.
Untilallthenegativeequitydisappears,thehousingmarketwon'tbebacktonormal.Itlookslikewestillhaveyearstogo.
Whydoesn'ttheauthorthinkthehousemarketisfullyrecovered? A．Insomeplaces,housepriceroseasmuchas30%.
B．Therewerebiddingwarsbreakingout.
C．Theforeclosureratehalvedfromitspeak.
D．Somehomeownersowemorethanthevalueoftheirhome.
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