The cherry market is competitive and is currently in a long$-$run equilibrium. Suppose that the U$.$S$.$ Surgeon General announces that new research has found cherries reduce the chances of having cancer by $50\%$ and the public believes this report. After this announcement, the cherry market responds and adjusts to its new long$-$run equilibrium.

It is found that the prices of inputs to all cherry producers increased over this adjustment process. This implies that the cherry market has a long$-$run supply curve that displays and its long$-$run supply curve is $q,$

external economies; downward sloping

external diseconomies; upward sloping

external diseconomies; downward sloping

external economies; upward sloping

constant costs; horizontal