You new to loosen a really stuck screw. You have a choice between two screwdrivers, both of which you can grip very well. The only difference is that one of them, the bottom one of these drawings, has a thicker handle than the other.

A. Which screwdriver, if either, will be more effective at loosening the stuck screw (or will they be the same)? Why?
B. If you just gave a common-sense answer without much mention of physics ideas, give a more "physicsy" explanation. If you gave a more physicsy explanation, now give a more common-sense explanation.
C. If you didn't do so in part B, now fill in the most important part: show how the physicsy and the common sense explanation are really saying the same thing.