Which of following is true concerning the short run aggregate supply curve in our model?

A)The short run aggregate supply curve indicates that there will be a inverse relationship between the price level and the level of output

B) The short run aggregate supply curve assumes prices stay fixed in the short run

C)The short run aggregate supply curve indicates that there will be a direct relationship between the price level and the level of output

D)The short run aggregate supply curve assumes will we always be at the full employment level of output