content area Part 1 The difference between a change in supply and a change in the quantity supplied is that the latter is Part 2 A. determined by the willingness of producers to sell while the former is set by the ability of firms to produce. B. conditional upon a change in the former, but not vice versa. C. caused by a variety of variables other than the product's price while the former is produced by a change in the product's own price. D. displayed graphically as a movement along a supply curve while the former is shown as a shift in the supply curve