Which of the following is the BEST control to minimize the risk associated with scope...

 The best control to minimize the risk associated with scope creep in software development is an established process for project change management. Scope creep is the uncontrolled expansion of the project scope due to changes in requirements, specifications, or expectations. A project change management process can help to prevent or reduce scope creep by defining the procedures for requesting, reviewing, approving, and implementing changes in the project. Retention of test data and results, business management review of functional requirements, and segregation between development, test, and production are other possible controls, but they are not as effective as a project change management process. References = ISACA Certified in Riskand Information Systems Control (CRISC) Certification Exam Question and Answers, question 11; CRISC Review Manual, 6th Edition, page 144.