137. In software development life cycle, the Waterfall Model assumes that…?

Вариант ответа 1 - A. Iteration will be required among the steps in the process.

Вариант ответа 2 - B. Each step can be completed and finalized without any effect from the later stages that may require rework.

Вариант ответа 3 - C. Each phase is identical to a completed milestone.

Вариант ответа 4 - D. Software development requires reworking and repeating some of the phases.