Question 9 The primary difference between a change in supply and a change in quantity supplied is that: O a) a change in quantity supplied is a movement along the supply curve, whereas a change in supply is a shift of the supply curve. O b) a change in supply concerns the supply curve, whereas a change in quantity supplied concerns shifts in the demand curve that shift the supply curve. O c) a change in supply is a movement along the supply curve, whereas a change in quantity supplied is a shift of the supply curve. Od) both a change in quantity supplied and a change in supply are movements along the supply curve, only in different directions. If the price is above the equilibrium price, then: a) excess demand exists. O b) a surplus exists. O c) the price must rise further to reach the new market equilibrium. O d) the good will not be sold