A Disruptive Innovator Attacks from the "Bottom Up" Because of All

A disruptive innovator attacks from the "bottom up" because of all of the following EXCEPT:

A) Incumbent firms often fail to defend the low end of the market.
B) The industry is generally in the maturity stage by the time a disruptive innovation is introduced.
C) The gaps in quality at the time of introduction necessitate lower prices.
D) Competing in the low end gives a firm time to gain market expertise.