Sony, a Firm Once Synonymous with Portable Music, Has Ceded

Multiple Choice

Sony, a firm once synonymous with portable music, has ceded its market dominance to Apple because:

A) it did not offer an online music store model to rival Apple's iTunes effort.
B) its technology offerings were too futuristic and out of sync with the waves of computing to appeal to customers.
C) it failed to adapt to the changes in the electronics industry as predicted by Moore's Law.
D) its music players contradicted the price / performance phenomenon predicted by Moore's Law.
E) it attempted to straddle the twin markets of online music retail and electronic music players, and could not capitalize on either.