An Industry's Key Success Factors Can Always Be Deduced by Asking

An industry's key success factors can always be deduced by asking what factors

A) are a function of market share, entry barriers, and economies of scale, degree of vertical integration, and industry profitability that are advantageous.
B) vary according to whether an industry has high or low long-term attractiveness.
C) such as product attributes and service characteristics are crucial, and what resources and competitive capabilities are needed, and what shortcomings are evident to put a company at a competitive disadvantage.
D) can be determined from studying the winning strategies of the industry leaders and ruling out as potential key success factors the strategy elements of those firms considered to have losing strategies.
E) depend on the relative competitive strengths of the industry leaders and how vulnerable they are to competitive attack.