题目内容：
根据下列选项，回答题。Documentarv credits are separate transactions from the contract of sales with which they are related．In documentary credits1are concerned only with documents，and their decision whether or not to pay，accept or negotiate under a credit depends solely onwhether the documents presented confirm to the terms and conditions in the 2．When the beneficiary submits documents that contain discrepancies or errors，the banks will reject the documents and return them to the3 for resubmission after corrections．Seen from a different perspective，even if the importer becomes bankrupt after the shipment，the beneficiary is entitled to payment by the issuing bank as long as he is able to present the correct 4stipulated in the credit．That banks deal only with documents and not performance of the5 is key to the operation of documentary credits．
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