Which One of the Following Does NOT Account for WHY

Multiple Choice

Which one of the following does NOT account for WHY a company's strategy evolves from one version to another?

A) a need to promote stability and retain the status quo
B) the need to abandon some strategy elements that are no longer working well
C) a need to respond to changing customer requirements and expectations
D) a need to react to fresh strategic maneuvers on the part of rival firms
E) the proactive efforts of company managers to improve obsolete aspects of the strategy