题目内容：
根据以下材料，回答题DianaJacobsthoughtherfamilyhadaworkableplantopayforcollegeforher21-year-oldtwinsons:acombinationofsavings,income,scholarships,andamodestamountofborrowing.Thenherhusbandlosthisjob,andtheplanfellapart.
"Ihavetwokidsincollege,andIwanttosay'comehome',butatthesametimeIwanttoprovidethemwithagoodeducation,"saysJacobs.
TheJacobsfamilydidworkoutasolution:Theyaskedandreceivedmoreaidformtheschools,andeachsonincreasedhisborrowingtothemaximumamountthroughthefederalloanprogram.Theywilleachgraduatewith$20000ofdebt,butatleasttheywillbeabletofinishschool.
Withunemploymentrising,financialaidadministratorsexpecttohearmorefamiliesliketheJacobs.Morestudentsareapplyingforaid,andmorefamiliesexpecttoneedstudentloans.Collegeadministratorsareconcernedthattheywillnothaveenoughaidmoneytogoaround.
Atthesametime,tuitioncontinuestorise.AreportfromtheNationalCenterforPublicPolicyandHigherEducationfoundthatcollegetuitionandfeesincreased439%from1982to2007,whileaveragefamilyincomerosejust147%.Studentborrowinghasmorethandoubledinthelastdecade.
"Ifwegoonthiswayforanother25years,wewon'thaveanaffordablesystemofhighereducation,"saysPatrickM.Callan,presidentofthecenter."Themiddleclassfamilieshavebeenfinancingitthroughdebt.Theywillsendkidstocollegewhateverittakes,evenifthatmeansahugeamountofdebt."
Financialaidadtninistratorshavebeenhavingahardtimeasmanycompaniesdecidethatstudentloansarenotprofitableenoughandhavestoppedmakingthem.Thegoodnews,however,isthatfederalloansaccountforaboutthreequartersofstudentborrowing,andthegovernmentsaysthatmoneywillflowuninterrupted.
AccordingtoParagraph1,whydidtheplanofJacobsfamilyfail? A．Thetwinswastedtoomuchmoney
B．Thefatherwasoutofwork
C．Theirsavingsranout
D．Thefamilyfellapart
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