Evaluating the Industry's Driving Forces, as a Whole, Requires Understanding

Evaluating the industry's driving forces, as a whole, requires understanding their influence on the attractiveness of industry environment and generally are

A) determined by the sizes of strategic groups and the power of rival firms' competitive strategies.
B) defined in ways that will strengthen or weaken market demand, competition, and industry profitability in future years.
C) the cause of a reduction in the bargaining power of buyers.
D) triggered by movement in the economy, higher or lower interest rates, or important new strategic alliances.
E) triggered by such factors as growing competitive pressures from substitute products, and the efforts of rival firms to employ new or different offensive strategies.