According to the interest-rate-based monetary policy transmission mechanism, a decrease in the money supply will A. lead to a decrease in investment spending and an increase in real GDP that is equal to the decrease in investment spending O B. lead to an increase in investment spending and a decrease in real GDP which is greater than the increase in investment spending O C. lead to a decrease in investment spending and a decrease in real GDP which is greater than the decrease in investment spending O D. lead to an increase in investment spending and a decrease in real GDP that is equal to the increase in investment spending