A Company's Strategy Is a "Work in Progress" and Evolves

A company's strategy is a "work in progress" and evolves over time because of the

A) importance of developing a fresh strategic plan every year that keeps employees from becoming bored with executing the same strategy year after year.
B) ongoing need to imitate the new strategic moves of the industry leaders.
C) need to make regular adjustments in the company's strategic vision.
D) ongoing need of company managers to react and respond to changing market and competitive conditions.
E) frequent need to modify key elements of the company's business model.