C
Review of the enterprise`s strategic plan is the first step in designing effective IS controls that would fit the enterprise`s long-term plans. Incorrect Answers: A: The IT strategic plan exists to support the enterprise`s strategic plan but is not solely considered while designing information system control. B: Review of the existing IT environment is also useful and necessary but is not the first step that needs to be undertaken. D: The present IT budget is just one of the components of the strategic plan.