[MUST SHOW WORK] An economy is at full employment equilibrium. All else the same, immigration increases, which adds new workers to the economy. These new workers cause a A. leftward shift in the long-run aggregate supply curve while the short-run aggregate supply curve remains the same. B. leftward shift in both the short-run and the long run aggregate supply curves. C. movement up along the short-run aggregate supply curve. D. rightward shift in the short-run aggregate supply curve while the long-run aggregate supply curve remains the same. E. rightward shift in both the short-run and the long-run aggregate supply curves