【单选题】
Theincreasedpopularityandavailabilityoftelevisionshasledtothedeclineofregionaldialects,languagevariationswhichoriginatefromdiverseethnicandculturalheritagesandperpetuatedbygeographicisolation.（）
(A)whichoriginatefromdiverseethnicandculturalheritagesandperpetuated
(B)thatoriginatedfromdiverseethnicandculturalheritagesandperpetuated
(C)originatedfromdiverseethnicandculturalheritagesandperpetuated
(D)originatingfromdiverseethnicandculturalheritagesandperpetuated
(E)originatingfromdiverseethnicandculturalheritagesandperpetuating
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