Explanation
Correct answer: D.
Choice D is the best answer because it most accurately describes the main purpose of the text. The text begins by noting that Anne “reveled in the world of color about her”—that is, she takes great delight in colorful things. It then relates a scene when she enthusiastically enters the house with autumn foliage and announces that she will decorate her room with it. The focus of the text then shifts to Marilla, who has an undeveloped “aesthetic sense,” or appreciation of beauty, as can be seen when she dismisses the maple leaves as “messy things” and criticizes Anne for cluttering her room with objects from outside. This episode thus illustrates that Anne and Marilla differ in their appreciation of beauty and, more generally, in their basic character: Anne is exuberant and joyful, while Marilla is stern and critical. Therefore, the purpose of the text is to show that Anne and Marilla have very different personalities.
Why the other choices are wrong
Choice A
Choice A is incorrect because the text presents Anne’s appreciation of nature as a basic personality trait, not as a newfound enthusiasm, and never indicates how recently she developed that appreciation.
Choice B
Choice B is incorrect. Although the text portrays Anne and Marilla as having different personalities and attitudes toward natural beauty and home decoration, it doesn’t show them engaging in an argument about this difference or suggest that they often argue about it.
Choice C
Choice C is incorrect. Although the text does indicate that Marilla disapproves of how Anne plans to decorate her room, Marilla’s disapproval is a supporting detail that serves to develop her personality, which the text as a whole contrasts with Anne’s personality.