The use of the official exchange rate of the Russian currency is compulsory Bbl6epnte onuH OTBeT: a. for accounting purposes b. in all types of payment and settlement relationships between citizens c. in all types of payment and settlement relationships between organisations d. in all export import trade transactions

The correct answer is a. for accounting purposes.<br /><br />The official exchange rate of the Russian currency is used for accounting purposes, which means it is used to record financial transactions in the accounting records of organizations and individuals. This ensures that financial statements and reports are prepared accurately and consistently.<br /><br />While the official exchange rate may be used in certain types of payment and settlement relationships between citizens and organizations, as well as in export-import trade transactions, it is not necessarily compulsory in all cases. The use of the official exchange rate may vary depending on the specific circumstances and regulations governing each type of transaction.