Clorox Corporation Controls 60 Percent of the Bleach Market

Clorox Corporation controls 60 percent of the bleach market. Imagine you are an entrepreneur who was considering developing and marketing a new brand of bleach. Which of Michael Porter's industry forces should you be most concerned about?

A) bargaining power of buyers
B) threat of substitute products or services
C) threat of new entrants
D) bargaining power of suppliers
E) character of the rivalry