Principles of software Eng , please help i don't have much time and just give the final answer

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Which of the following terms is best defined by the statement: "There will be a change of organizational management with different priorities.? Staff turnover Technology change Management change Product competition With regard to Evolutionary development, identify the correct statement Evolutionary development usually comes in two flavors; exploratory development, and throw-away prototyping Very large projects are natural candidates for an evolutionary development based approach Exploratory development is used in situations where most of the requirements are well understood in advance Often the construction of a throw-away prototype is not followed by a reimplementation of the system using a more structured approach Which of the following is not considered as a risk in project management? Specification delays O Product competition Testing Staff turnover