ratherthan、Choosethecorrectwordstocompletethesentences.Priortothethcentury，manylanguageswithsmallnumbersofspeakerssurvivedforcenturies.Theincreasinglyinterconnectedmodernworldmakesituchmoredifficultforsmalllanguagecommunitiestoliveinrelativeisolation，akeyfactorinlanguage____.ApreferenceBmaintenanceCoccurrenceDemergence