d$)$ Briefly describe the idea behind Fitts' Law. Explain bow it applies to user interfa design. Apply your knowledge of this law to Figure $2$ below and indicate givit reasons which targef you think is fastest to reach with the mouse starting at locell M$.$ Assume that you can move your hand equally well in all directions, and th none of the targets are near a sereen edge.? Give reasons for your answer.

Rgure $2$:

$.$th$\text{'}1$aw engan