During the 2000s, the Price of DVD Players Fell Each

During the 2000s, the price of DVD players fell each year and manufacturers of DVD players produced and sold more DVD players each year. This result is because the

A) ʺlaw of supplyʺ does not apply to companies in the ʺhigh-techʺ sector of the economy.
B) demand curve for DVD players shifted leftward.
C) supply curve of DVD players shifted rightward.
D) ʺlaw of demandʺ does not apply to customers in the ʺhigh -techʺ sector of the economy.