The primary difference between a change in supply and a change in the quantity supplied is that:
A) a change in quantity supplied is a movement along the supply curve,while a change in supply is a shift in the supply curve. B) both a change in quantity supplied and a change in supply are movements along the supply curve,only in different directions. C) a change in supply is related to the supply curve,while a change in quantity supplied is related to shifts in the demand curve that shift the supply curve. D) a change in supply is a movement along the supply curve,while a change in quantity supplied is a shift in the supply curve.