[solved] Which of the following is NOT one of the reasons that a company's strategy evolves over time?

The deliberately planned efforts of company managers to make frequent strategy adjustments that will surprise rivals and keep them busily engaged in defending against its latest moves in the marketplace. 

The need to respond to important technological breakthroughs and/or the fresh moves of competitors

When the present strategy is clearly failing, perhaps because market conditions or buyer preferences suddenly change dramatically

Ongoing management efforts to fine-tune this or that piece of the strategy and to adjust certain strategy elements in response to new learning and unfolding events

The need to keep strategy in step with changing market conditions, advancing technology, and/or newly emerging market opportunities