67.如信用狀規定 "FULL SET (3/3 SET) OF CLEAN OCEAN B/L MADE OUT TO ORDER OF ISSUING BANK... "，則有關受益人押匯時所須提示之提單，下列敘述何者正確？ (A)全套正本提單，並須經受益人背書 (B)全套正本提單，但無須經受益人背書 (C)乙份正本提單，並須經受益人背書 (D)乙份正本提單，但無須經受益人背書