Economic-A decrease in the price of electricity will cause??thank you?

Question

A decrease in the price of electricity will cause

a movement down the SRAS curve.

a movement up the SRAS curve.

a leftward shift in the SRAS curve.

a rightward shift in the SRAS curve.

no change regarding the SRAS curve.

Answer 1

d) a rightward shift in the SRAS curve.

I think Keynes is off with the perfectly elastic SRAS.

Answer 2

d) a rightward shift in the SRAS curve.

Though for old Classical model - (there SRAS is horizontal) "a movement down the SRAS curve." would be right, but stick on "d".

Answer 3

Changes in price bring about changes in quantities supplied or demanded so I'd have to say a) because lower prices mean lower quantity supplied.