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. TheAsianvolunteersmayhavefocusedontheeyesbecause__________. 查看材料
A.Easterners believe using the eyes to express feelings is more subtle
B.it's polite to focus on other people's eyes in some Asian cultures
C.Easterners tend to use the eyes to express their emotions
D.it's easier for Easterners to communicate using the eyes
正确答案是A