the 8/80 Rule states that the work package should not equate to less than eight hours of labor to create and no more than 80 hours of labor to create. 2 is incorrect because the Law of Diminishing returns describes the effect of added labor and the return for the labor. 3 is incorrect because the priority of the project doesn’t affect the decomposition of the project. 4 is incorrect because the timetable to create the WBS does not dictate the level of detail required for decomposition