In 1973, the reform of the international monetary system resulted in the change from: A. Adjustable pegged rates to managed floating rates
B. Managed floating rates to adjustable pegged rates
C. Crawling pegged rates to freely floating rates
D. Freely floating rates to crawling pegged rates
B. Managed floating rates to adjustable pegged rates
C. Crawling pegged rates to freely floating rates
D. Freely floating rates to crawling pegged rates