The figure shows the demand curve for sundaes Suppose that the price of a sundae rises but all other influences on buyers' plans remain the same. Show the effect in the graph. Draw either an arrow on the demand curve showing the direction of change or a new demand curve. If the price of a sundae rises, a the demand curve occurs. If any factor that influences buying plans other than the price changes, then a the demand curve occurs O A. rightward shift of, movement down along O B. movement down along; shift of O C. movement up along, shift of O D. leftward shift of, movement up along