题目内容：
根据下列材料，请回答题：PeopleonacollegecampusweremorelikelytogivemoneytotheMarchofDimesiftheywereaskedforadonationbyadisabledwomaninawheelchairthanifaskedbyanondisabledwoman.Inanother50,subwayridersinNewYorksawamancarryingastickstumble（绊
脚）andfalltothefloor.Sometimesthevictimhadalargeredbirthmarkonhis51sometimeshedidnot.Inthissituation,thevictimwasmorelikelyt052aidifhisfacewasspotlessthanifhehadanunattractivebirthmark.In53theseandotherresearchfindings,twothemesare54:wearemorewillingtohelppeoplewelikeforsomereasonandpeoplewethink_55_assistance.
Insomesituations,thosewhoarephysicallyattractivearemorelikelytoreceiveaid.56,inafieldstudyresearchersplacedacompletedapplicationtograduateschoolinatelephoneboxattheairport.Theapplicationwasreadytobe57,buthadapparentlybeen"lost".Thephotoattachedtotheapplicationwassometimesthatofavery58personandsometimesthatofalessattractiveperson.Themeasureofhelpingwaswhethertheindividualwhofoundtheenvelopeactuallymaileditornot.Resultsshowedthatpeopleweremorelikelyto59theapplicationifthepersoninthephotowasphysicallyattractive.
Thedegreeof_60betweenthepotentialhelperandthepersoninneedisalsoimportant.
Forexample,peoplearemorelikelytohelpastrangerwhoisfromthesamecountryratherthanaforeigner.Inonestudy,shoppersonabusystreetinScotlandweremorelikelytohelpapersonwearinga(n)61T-shirtthanapersonwearingaT-shirtprintedwithoffensivewords.
Whetherapersonreceiveshelpdependsinpartonthe"worth"ofthecase.Forexample,shoppersinasupermarketweremorelikelytogivesomeone.62_tobuymilkratherthantobuycookies,probablybecausemilkisthoughtmoreessentialfor63thancookies.PassengersonaNewYorksubwayweremorelikelytohelpamanwhofelltothegroundifheappearedtobe64ratherthandrunk.
A.study
B.way
C.word
D.college
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