The Nature and Strength of the Competitive Forces That Prevail

The nature and strength of the competitive forces that prevail in an industry is generally a joint product of

A) the pressures induced by the market maneuvering and jockeying for buyer patronage that goes on among rival sellers in the industry.
B) the threat that firms outside the industry will decide to enter the market.
C) the attempts of companies in other industries to win buyers over to their own substitute products.
D) competitive pressures stemming from the bargaining power of both suppliers and buyers.
E) All of these.