QUESTION $22$

Which of the following is possible?

A$.$ An increase in the relative price of shoes causes a change in the aggregate supply curve.

B$.$ An increase in the relative price of shoes causes a change in the demand for shoes.

C$.$ An increase in the nominal price of shoes causes a change in the supply of shoes.

D$.$ An increase in the nominal price level causes a change in the aggregate demand.

E$.$ This is a trick question, none of the above are possible