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How does a decrease in the price level affect the quantity of real GDP supplied in the long run? Long-Run Aggregate Supply (LRAS) O A. In the long run, a decrease in the price level will increase real GDP. 150- O B. In the long run, a decrease in the price level increases inflation, which will decrease real GDP. 120 LRAS07 LRASS LRAS09 O C. In the long run, a decrease in the price level decreases inflation, which will decrease real GDP. O D. Changes in the price level do not affect the level of GDP in the long run. Price level (GDP deflator) 110 100 25 Real GDP (trillions of $)