Does economic growth result from increases in aggregate demand, short$-$run aggregate supply, or long$-$run aggregate supply?

Economic growth results from

A$.$ the decisions of Congress to cut taxes or increase spending, which increase long$-$run aggregate supply

B$.$ a decreasing output gap, which increases aggregate demand

C$.$ a growing supply of labor and increasing labor productivity, which increase long$-$run aggregate supply

D$.$ a decreasing inflationary gap, which increases short$-$run aggregate supply