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Why does demand not change when the price of a good changes with no change in the other influences on buying plans? Consider the demand for DVD players. . . . The demand for DVD players does not change when a change in occurs. O A. the price of a DVD (a DVD is a complement of a DVD player) O B. the expected future price of a DVD player O C. the average income O D. the price of a DVD player An increase in the price of a DVD player O A. increases the quantity of DVD players demanded and results in a movement down along the demand curve for a DVD player O B. decreases the demand for DVD players and shifts the demand curve for a DVD player leftward O C. decreases the quantity of DVD players demanded and results in a movement up along the demand curve for a DVD player O D. increases the demand for DVD players and shifts the demand curve for a DVD player rightward