Which of the Following Increases the Quantity Supplied of Compact

Which of the following increases the quantity supplied of compact discs but does NOT increase the supply of compact discs?

A) An increase in the price of the resources used to produce compact discs
B) A decrease in the price of a compact disc
C) An increase in the price of a compact disc
D) New technology that lowers the cost of producing compact discs
E) A decrease in the number of suppliers of compact discs