Answer: Throwaway prototyping
Explanation:
Waterfall is used when the system has clear requirements, reasonably reliable, very familiar technologies, isn't too complex. It's also used when there's a very long time schedule and in a scenario whereby the schedule visibility isn't important.
Parallel is used when the system project has clear requirements, shirt time schedule, technologies that are very familiar, not all that complex; reasonably reliable, and the schedule visibility is not important.
With regards to the question, the description given fits a throwaway prototyping. Therefore, the correct option is E.
