Productivity among workers has greatly declined, with fewer projects being completed. Because workers are increasingly assigned an unmanageable number of tasks, most work slower and accomplish less during the time they spend on the job. Therefore, an effective way for employers to increase productivity would be to minimize the number of tasks any individual worker is assigned at a given time, allowing her to focus on and complete a single project before moving on to the next one.
Which of the following, if true, would most support the recommendation above?
【选项】
Enhancements to workplace amenities have been shown to increase productivity among workers.
选项是否正确？