Apple's IPod Sold More Than 50 Million Units Annually Between

Multiple Choice

Apple's iPod sold more than 50 million units annually between 2001 and 2010 when the iPhone integrated a music player. Since then sales have been declining dramatically and in 2014 Apple announced that it was discontinuing the iPod classic, and in 2017 it did the same with the nano and the shuffle. Today Apple still sells the iPod touch although declining sales and discontinued products suggest that this SBU is has become a

A) question mark.
B) star.
C) ghost.
D) cash cow.
E) dog.