_____ is an effective means to solve these problems. Its objective is to facilitate international payment by means of the credit-worthiness of the bank.
A、The letter of credit
B、The clean draft
C、The shipping documents
D、The documents against payment
【正确答案】：A
【题目解析】：The letter of credit is an effective means to solve these problems. Its objective is to facilitate international payment by means of the credit-worthiness of the bank.参见教材P151。