Concept:Market price is the equilibrium price determined by the intersection of demand and supply. Changes in demand or supply conditions shift these curves and affect price.
Explanation:An increase in demand shifts the demand curve rightward and raises the market price of the commodity.
A change in taste alters consumer preference, which changes demand and therefore affects market price.
An increase in supply shifts the supply curve rightward and lowers the market price.
The intersection of demand and supply is not an external factor affecting price. It is simply the point where buyers and sellers agree on the price.
Thus, among the given options, the intersection of demand and supply itself does not affect market price; it only determines the resulting price.
Answer:C. intersection of demand and supply.