The Independent reported in 2004 that "Online music stores such as Apple's iTunes were seen as a revolution in music sales, with customers turning their backs on CDs to shop online" Based on this report, you can conclude that the introduction of online music stores has shifted:

A. the supply curve of CDs to the right.

B. the supply curve of CDs to the left.

C. the demand curve of CDs to the right.

D. the demand curve of CDs to the left.