The figure shows the demand curve for sundaes. Suppose that the price of a sundae falls 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 falls, a the demand curve occurs If any factor that influences buying plans other than the price changes, then a the demand curve occurs A. rightward shift of, movement down along B. leftward shift of; movement up along C. movement up along; shift of D. movement down along; shift of