23. A company's strategy evolves over time as a consequence of: A.the need to keep strategy in step with changing circumstances, market conditions, and changing customer needs and expectations. B. the proactive efforts of company managers to fine-tune and improve one or more pieces of the strategy. C. the need to abandon some strategy features that are no longer working well. D. the need to respond to the newly initiated actions and competitive moves of rival firms. E. All of these