A beneficiary has presented a full set of documents under a credit provided for deferred payment at
A. On the maturity date in accordance with UCP 500 Article 9ii and Article 15, issuing bank ______ to the nominated bank.
B. On the maturity date in accordance with UCP 600 Article 7aIII, 7c and Article 12b, the issuing bank ______ to the nominated bank, because UCP 600 Article 7c stipulates: "An issuing bank's undertaking to reimburse a nominated bank is independent of the issuing bank's undertaking to the beneficiary. "