In a letter of credit transaction, “Honour” means:
选项：

A: to pay at sight if the credit is available by sight payment.
B: to incur a deferred payment undertaking and pay at maturity if the credit is available by deferred payment.
C: to accept a bill of exchange (“draft”) drawn by the beneficiary and pay at maturity if the credit is available by acceptance.
D: the purchase by the nominated bank of drafts and/or documents under a complying presentation.