单选题
A standby letter of credit ______.
A、
is a promise by the importer to honor the beneficiary's presentation of the documents
B、
is never used as a payment mechanism
C、
is used when the obligation in the underlying transaction is not performed by the obligor
D、
can not be used to assure the performance of non - monetary obligations
【正确答案】
C
【答案解析】
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