A prolonged period of an official interest rate of zero without an increase in economic growth most likely suggests that: A. quantitative easing must be limited to be successful. B. there may be...

A prolonged period of an official interest rate of zero without an increase in economic growth most likely suggests that:

A. quantitative easing must be limited to be successful. B. there may be limits to the effectiveness of monetary policy. C. targeting reserve levels is more important than targeting interest rates.