In the AD-AS model,if technological advancements such as automation allow firms to be more productive, then:

a) Theshort-run aggregate supply will first shift to the right; however, as wages adjust, it shifts back to the left. Overall, long-run aggregate supply does not change.

b) Theshort-run aggregate supply will first shift to the left; however, as wages adjust, it shifts back to the right. Overall, long-run aggregate supply does not change.

c)The long-run aggregate supply curve will shift to the left.

d) Thelong-run aggregate supply will first shift to the right.

e) Neither short-run aggregate supply nor long-run aggregate supply will be affected.