Tobefair,thisobservationisalsofrequentlymadeofCanadaandCanadians,andshouldbestbeconsideredNorthAmerican.Thereare,ofcourse,exceptions.Small-mindedofficials,rudewaiters,andill-manneredtaxidriversarehardlyunknownintheUS.Yetitisanobservationmadesofrequentlythatitdeservescomment.Foralongperiodoftimeandinmanypartsofthecountry,atravelerwasawelcomebreakinanotherwisedullexistence.Dullnessandlonelinesswerecommonproblemsofthefamilieswhogenerallyliveddistantfromoneanother.Strangersandtravelerswerewelcomesourcesofdiversion,andbroughtnewsoftheoutsideworld.Theharshrealitiesofthefrontieralsoshapedthistraditionofhospitality.Someonetravelingalone,ifhungry,injured,orill,oftenhadnowheretoturnexcepttothenearestcabinorsettlement.Itwasnotamatterofchoiceforthetravelerormerelyacharitableimpulseonthepartofthesettlers.Itreflectedtheharshnessofdailylife:ifyoudidn’ttakeinthestrangerandtakecareofhim,therewasnooneelsewhowould.Andsomeday,remember,youmightbeinthesamesituation.Todaytherearemanycharitableorganizationswhichspecializeinhelpingthewearytraveler.Yet,theoldtraditionofhospitalitytostrangersisstillverystrongintheUS,especiallyinthesmallercitiesandtownsawayfromthebusytouristtrails.“Iwasjusttravelingthrough,gottalkingwiththisAmerican,andprettysoonheinvitedmehomefordinner—amazing.”SuchobservationsreportedbyvisitorstotheUSarenotuncommon,butarenotalwaysunderstoodproperly.ThecasualfriendlinessofmanyAmericansshouldbeinterpretedneitherassuperficialnorasartificial,butastheresultofahistoricallydevelopedculturaltradition.Asistrueofanydevelopedsociety,inAmericaacomplexsetofculturalsignals,assumptions,andconventionsunderliesallsocialinterrelationships.And,ofcourse,speakingalanguagedoesnotnecessarilymeanthatsomeoneunderstands,socialandculturalpatterns.Visitorswhofailto“translate”culturalmeaningsproperlyoftendrawwrongconclusions.Forexample,whenanAmericanusestheword“friend”,theculturalimplicationsofthewordmaybequitedifferentfromthoseithasinthevisitor’slanguageandculture.Ittakesmorethanabriefencounteronabustodistinguishbetweencourteousconventionandindividualinterest.Yet,beingfriendlyisavirtuethatmanyAmericansvaluehighlyandexpectfrombothneighborsandstrangers. Itcouldbeinferredfromthelastparagraphthat_____.
A.culture exercises an influence over social interrelationship
B.courteous convention and individual interest are interrelated
C.various virtues manifest themselves exclusively among friends
D.social interrelationships equal the complex set of cultural conventions
正确答案是A