题目内容：
根据以下内容回答题。 AparentwithachildcarryingamusicalinstrumentoradrawingboardwalkingalongaBei-jingsubwayplatformorstreetisafamiliarsightonweekends．Theyareonthewaytotrainingschools．
Educationoftheirchildrenhasbecomethemostimportantresponsibilityofparentswhoweresenttoruralareasfor"re-education"duringthe"CulturalRevolution"from1966to1976．
Theylostthechanceforuniversityeducationandnowhopetheirchildrencanreceiveabettereducationthantheydid．Asaresult,thesepeoplenowintheirfortiesexposetheirlittlechildrentoearlytrainingsothattheycanenteraprestigiousschool．
Theparentsimaginearoadtosuccess:fromexcellentprimaryandmiddleschoolstoaneliteuniversityandthentoagoodjob．Onaverage,theymayspendabout100yuanamonthontheirchildren'seducation．
Andwhatresultshavetheseparentsobtained?
Mostofthemfeelthatthelargeinvestmenthasfailedtoleadtorapidprogressintheirchil-dren'sstudy．"Weseemtobethrowingourmoneyaway,"saidoneparent．
However,manyparentsstillthinkthatspendingmoreontheirchildren'sschoolingwillresultinhighscores．Theseparentshavealsointroduceda"contractsystem",whichoffersrewardsforgoodschoolgrades．Morethan80%ofparentsinfamiliesinChengduhavesignedcontractswiththeirchildren,accordingtotheConsumers'Times．Thepapernotesthattheheavypressureputonchildrentoperformwellatschoolhasresultedinadeclineinchildren'shealth．
Theparents'investmentintheirchildrenalsoincludeshiringtutors．Asurveyof250studentsinXuzhoufoundthat10%oftheirparentshiredtutors．Thepayforonetutorialhouristhreeyuan．
LiberationDailycommentedthattheseparentshavetoohighexpectationsoftheirchildren．
Accordingtothearticle,"Theyaretryingtohelptheyoungplantsgrowbypullingthemupowards．"Theyignoretheirchildren'spsychologyandperhapswilldamagetherealtalentsthechil-drenpossess．
Parentsintheirfortieswanttheirchildrentogetthebesteducationbecause A．theparentsmissedoutontheirowneducationwhentheywereyoung．
B．itistheirresponsibilitytohelptheirchildren．
C．theirchildrenareclevererthantheywere．
D．theydon'twantthemtogototheruralareas．
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答案解析：