Which would serve as the most appropriate thesis for an essay analyzing setting in a particular novel?

1. Oftentimes authors develop setting in their novels because setting is one of the most important literary elements.
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2. I like the author's use of setting in this novel because it reminds me of my home as a child.

3. The author uses setting to contrast the main character's personality with her grim surroundings.

O4. The author uses devices to develop setting, character, and plot to create an interesting story.