Whichofthefollowingstatementsaretrueaboutdocumentarycredit_____?
A、documentarycreditmeanspaymentagainstdocumentinsteadofagainstgoods
B、allthedocumentarycreditsareoperatedthroughbanks
C、thebuyersisnotrequiredtopayforthegoodsuntilthearrivaloftherelevantshippingdocuments
D、thedocumentstransfertitletothegoods