Which one of the following statements about the tax policy of customs special supervision areas is correct?

A、Importedgoodswhichisusedbybondedzoneshallbeexemptedimportduties;exportedgoodstooverseasfrombondedzone,itshallbeexemptedexportduties.;
B、Importedgoodswhichisusedbybondedzoneshallbeexemptedimportduties;exportedgoodstooverseasfrombondedzone,itshallbeleviedonexportduties.;
C、Importedgoodswhichisusedbybondedzoneshallbeleviedonimportduties;exportedgoodstooverseasfrombondedzone,itshallbeexemptedexportduties.;
D、Importedgoodswhichisusedbybondedzoneshallbeleviedonimportduties;exportedgoodstooverseasfrombondedzone,itshallbeleviedonexportduties.