Answer:
d. None of the above is correct.
Explanation:
a ) An increase in the actual price level shifts the short -run aggregate supply right .
b ) An increase in the expected price level decreases the aggregate supply ie it will shift the short -run aggregate supply line towards the left .
c ) An increase in the capital stock shifts the long-run aggregate supply towards the right because movement of capital is for long term purposes .
d ) So , none of the above is correct .
