题目内容：
根据以下材料，回答题 Manytheoriesconcerningthecausesofjuveniledelinquency(crimescommittedbyyoungpeople)focuseitherontheindividualoronsocietyasthemajorcontributinginfluence．Theories(41(ontheindividualsuggestthatchildrenengageincriminalbehavior(42)theywerenotsufficientlypenalizedforpreviousmisdeedsorthattheyhavelearnedcriminalbehaviorthrough(43)withothers．Theoriesfocusingontheroleofsocietysuggestthatchildrencommitcrimesin(44)totheirfailuretoriseabovetheirsocioeconomicstatus,(45)asarejectionofmiddle-classvalues.
Mosttheoriesofjuveniledelinquencyhavefocusedonchildrenfromdisadvantaged
families,(46)thefactthatchildrenfromwealthyhomesalsocommitcrimes．Thelatter
maycommitcrimes(47) lackofadequateparentalcontrol．Alltheories,however,are
tentativeandare48tocriticism.
Changesinthesocialstructuremayindirectly(49)juvenilecrimerates．Forexample,changesintheeconomythat(50)tofewerjobopportunitiesforyouthandrisingunemployment(51)makegainfulemploymentincreasinglydifficulttoobtain．The
resultingdiscontentmayin(52)leadmoreyouthsintocriminalbehavior.
Familieshavealso(53)changestheseyears．Morefamiliesconsistofoneparenthouseholdsortwoworkingparents(54),childrenarelikelytohavelesssupervisionathome(55)wascommoninthetraditionalfamily56)．Thislackofparentalsupervisionisthoughttobeaninfluenceonjuvenilecrimerates．Other(57)causesofoffensiveactsincludefrustrationorfailureinschool,theincreased58ofdrugsandalcohol,andthegrowing59)ofchildabuseandchildneglect．Alltheseconditionstendtoincreasetheprobabilityofachildcommittingacriminalact,(60)adirectcausalrelationshiphasnotyetbeenestablished.
第41题答案是________ A．acting
B．relying
C．centering
D．commenting
参考答案：
答案解析：