题目内容：
Questionsarebasedonthefollowingpassage. Romanticlovehasclearevolutionaryrootsbutourviewsaboutwhatmakesanidealromanticrelationshipcanbeswayedbythesocietywe．livein．SosayspsychologistMaureenO'SullivanfromtheUniversityofSanFrancisco．Shesuggeststhathumanshavealwaystriedtostrengthenthepair-bondtomaximise(使最大化)reproductivesuccess.
Manysocietiesthroughouthistoryandaroundtheworldtodayhavecultivatedstrongpressurestostaymarried．Inthosewheretiestofamilyandcommtmityarestrong,lifelongmarriagescanbepromotedbypracticessuchastheculturalprohibitionofdivorceandarrangedmarriagesthatareseenasacontractbetweentwofamilies,notjusttwoindividuals．Inmodernwesternsocieties,however,thefocusonndividualityandindependencemeansthatpeoplearelessconcernedaboutconformingto(遵守)thedictatesoffamilyandculture．Intheabsenceofsocietalpressurestomaintainpair-bonds,O'Sullivansuggeststhatromanticlovehasincreasinglycometobeseenasthefactorthatshoulddeterminewhowestaywithandforhowlong．"That'swhyhistoricallyweseeanincreaseinromanticloveasabasisforforminglong-termrelationships,"shesays.
AccordingtoO'Sullivanculturealsoshapesthesortsoffeelingsweexpecttohave,andactuallydoexperience,wheninlove．Althoughthenegativeemotionsassociatedwithromanticlove-fearofloss,disappointmentandjealousy-arefairlyconsistentacrosscultures,thepositivefeelingscanvary．"IfyouaskJapanesestudentstolistthepositiveattributestheyexpectinaromanticpartner,theyratehighlythingslikeloyalty,commitmentanddevotion,"saysO'Sullivan．"IfyouaskAmericancollegewomen,theyexpecteverythingunderthesun:inadditiontobeingcommitted,partnershavetobeamusing,funnyandafriend."
Wejudgeapotentialpartneraccordingtoourspecificculturalexpectationsaboutwhatromanticloveshouldfeellike．Ifyoubelievethatyouhavefoundtrueromance,andyourculturetellsyouthatthisiswhatalong-termrelationshipshouldbebasedon,thereislessneedtorelyonsocialorfamilypressurestokeepcouplestogether,O'Sullivanargues.
Whatdoestheauthorsayaboutpeople'sviewsofanidealromanticrelationship? A．Theyvaryfromculturetoculture.
B．Theyensurethereproductivesuccess.
C．Theyreflecttheevolutionaryprocess.
D．Theyareinfluencedbypsychologists.
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