Time left 0: The importer benefits from the L/C: O a because the exporter only needs to worry about the credibility of its bank rather than the importer's bank O b. because the exporter may request that its bank assure that all the responsibilities of the importer's bank will be met. O c. because it may not trust the exporter's bank more than the exporter itself to verify shipment of the products. O d. because it does not have to make payment until the exporter has shipped the products