When injecting reserves in the banking system through a repurchase agreement the Reserve Bank of Australia (RBA): Select one: O a. sells specific types of securities to the ESA holders on the basis that the RBA will repurchase them back later. O b. buys specific types of securities from the ESA holders on the basis that the RBA will resell them back to them later. O c. buys and sells securities in the market on behalf of ESA holders. O d. buys and keeps specific types of securities in its portfolio for unspecified horizon