The abbreviation of RMB (used in international foreign exchange transactions) is CNY, which is the legal tender of China. The abbreviation of euro is EUR, which is the legal tender of Germany. Item a is correct. The abbreviation of Swiss franc is CHF, but it is the legal tender of Switzerland, excluding item B. Japanese yen is the legal tender of Japan, but its correct abbreviation is JPY, excluding item C. The abbreviation of British pound is GBP, but it is not the legal tender in Australia. The legal tender of Australia is the Australian dollar, and the English abbreviation is AUD. Exclude item D.