.1. To the exporter, the fastest and safest method of settlement is ( B )A. letter of credit B. cash in advance C. open account D. bankers draft2. To the importer, the most favorable method of settlement is ( C )A.letter of credit B. cash in advance C. open account D. collection3. Which of the following payment method is based on commercial credit?( C )A.letter of credit B.bank guarantee C. collection D. standby credit4. An exporter sells goods to a customer abroa