Option(D) is correct
Option A : Working without interruption would likely mean improved productivity.
Option B : Assuming that all employees are in the same time zone (we are not told otherwise), the flexible hours would still leave plenty of time for at least one daily consultation during the regular business hours of the workday.
Option C : Eventual approval indicates that the flexibility exists to permit employees’ submissions at any time.
Option D : Correct. The wide range of flexibility in regards to working hours would make frequent interaction difficult, if not impossible, and would be likely to
decrease employees’ productivity.<
Option E : We are not told that the projects involve significant interaction; so such projects would be accomplished just as easily on the proposed flexible schedule.
The correct answer is D.