The letter of credit is usually opened by the______

The letter of credit is usually opened by the______
A、issuing bank
B、confirming bank
C、advising bank
D、negotiating bank
【正确答案】：A
【题目解析】：A项表示“开证行”;B项表示“保兑行”;C项表示“通知行”;D项表示“议付行”。根据常识可知，信用证通常由开证行开立，故选A项。