For much of the 1990s, the U. S. economy was experiencing long-run economic growth, low unemployment, and a stable inflation rate. Which of the following would give rise to these outcomes? A. an increase in aggregate demand and short-run aggregate supply
B. a decrease in aggregate demand and short-run aggregate supply
C. a decrease in aggregate demand and an increase in short-run aggregate supply
D. an increase in aggregate demand and a decrease in short-run ag

. an increase in aggregate demand and short-run aggregate supply

Explanation:

From the question, we are informed that during the 1990s, the economy of the United States was experiencing long-run economic growth, low unemployment, and a stable inflation rate.

The reason for this is due to an increase in aggregate demand and short-run aggregate supply. This two factors will lead to the long run economic growth which the United States experienced.

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