Figure: Shift of the Aggregate Demand Curve Price level C A E B AD AD2 Real GDP 95. (Figure: Shift of the Aggregate Demand Curve) A movement from point C on AD, to point A on ADj may have been the result of : A) an increase in investment demand due to optimistic GDP forecasts. B) a decrease in investment due to pessimistic GDP forecasts. C) decreases in the taxes paid by businesses. D) lower interest rates