The Fact That Both Rolex and Timex Have a Competitive

The fact that both Rolex and Timex have a competitive advantage selling wristwatches is an indication that:

A) Following a different generic business strategy within the same industry can lead to a competitive advantage for more than one organization.
B) Following the same generic business strategy can allow for two firms competing in the same industry to have a competitive advantage at the same time.
C) In order to evaluate whether Rolex has a sustained competitive advantage it is useful to compare it to Timex from a cost perspective.
D) In order to evaluate whether Timex has a sustained competitive advantage, it is useful to compare it to Rolex from a differentiation perspective.