1947年，美国国务卿马歇尔说：“我们的任务是唤起合理经济的再生，促使政治社会的结构容纳自由制度的存在。”这里的“合理经济的再生”是指[ ]

A．资本主义经济的恢复

B．市场经济的恢复

C．社会主义经济的建立

D．计划经济的建立

When real interest rates fall as a result of an unexpected expansionary monetary policy of government:（）

A. aggregate demand decreases leading to both an increase in current output and higher prices in the short run.

B. aggregate demand increases leading to both an increase in current output and higher prices in the short run.

C. aggregate demand increases leading to both a decrease in current output and higher prices in the short run.