请阅读短文 Severaldecadesago,theUSsociologistswentsofarastodevelopaseriesofuniversalfacialimagessupposedtorepresentthesevenbasichumanemotions:happiness,sadness,surprise,fear,disgust,angerandneutrality.Butnow,anewstudybyresearchersattheUniversityofGlasgowindicatesthatthesestandardizedfacialimagesaren'tsouniversalafterall. Forthestudy,theScottishresearchersfound13WesternCaucasians(mainlyEuropeans)and13EastAsians(mostlyChinesestudents).Thevolunteerswereshownthestandardizedfacialimagesandaskedtoidentifytheemotionsbeingexpressed.Atthesametime,theresearcherselectronicallymonitoredtheeyemovementsofthevolunteers. Accordingtotheresults,publishedinthejournalCurrentBiology,theAsianparticipantshadahardertimethantheCaucasianstellingthedifferencebetweenafacemeanttolookfearfulcomparedwithoneshowingsurprise,andafacesupposedlyexpressingdisgustcomparedwithonedisplayinganger."Thisstronglysuggeststhatthemeaningsoffacialexpressionsaredifferentacrossculture."saysRachaelJack,wholedthestudy. Thestudyalsoshowedthatthevolunteersfocusedondifferentpartsofthefaceintheireffortstounderstandtheunderlyingemotions."Westernerslookatboththeeyesandthemouthtothesamedegree,yetEasternersfavortheeyesandoverlookthemouth.ThismeansthatEasternershavedifficultiesdistinguishingfacialexpressionsthataresimilararoundtheeyes."MsJacksays.Thefacesrepresentingfearandsurprise"bothhavebig,wideopeneyes,whilethemouthsareverydifferent."Shenotes."Itwouldbedifficulttodistinguishbetweenthetwo...ifyoudidn'tlookatthemouth." Sowhywoulddifferentculturesexpressemotionsindifferentways?MsJackthinksitmaybeconsideredimpoliteinsomeAsianculturestodisplaycertainemotionsinanobviousmanner,andthattheyusemoresubtlewaystoexpressthem.Inparticular,musclemovementsaroundtheireyescouldbemoreimportantforexpressingfeelingsthanover-expressivemouthmovements,explainingwhytheAsianparticipantsfocusedontheeyes,shesays. ThefactthattheAsianvolunteersconfusedsomefacialexpressionsshowsthat__________. 查看材料
A.different cultures have different facial expressions
B.people of different backgrounds share similar facial expressions
C.Easterners have a more complex system of facial expressions
D.Westerners and Easterners express their emotions in similar ways
正确答案是A