The end of the video touched on the idea of cognitive resources being limited, and the notion that some tasks require far more/less active cognitive processing than others. After having completed the exercise, according to what you learned and based on graphical data presented, it is safe to assume that the ____________ group required the greatest mental resources, while the ____________ group required the least. This left the ___________ group lying between these two extremes with regard to use of cognitive resources, as would be expected.