单选题 If a central bank wants to implement expansionary monetary policy, how would the central bank use the following monetary tools? Reserve Requirements Open Market Operations Discount Rate ①A. Lower Buy additional government securities Lower ②B. Lower Sell previous purchased government securities Raise ③C. Raise Sell previous purchased government securities Raise
【正确答案】 A
【答案解析】Expansionary monetary policy involves reducing reserve requirements, purchasing addition government securities, and lowering the discount rate.