Figuring out the audience and purpose of your writing can help you determine the angle at which you want to approach your essay/writing. For example, if your task is to write a persuasive essay to a younger audience, it’s vital to know this information so it is understandable to the audience and serve the purpose of the prompt.
Hey there!
The fourth option or choice D should be capitalized, because Texas is a noun, all nouns are capitalized.
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The author of the text that contains this quote appeals to the reader's sense of logic by quoting an authority/expert on the matter. Taking into consideration that expert's opinions, in argument, are as close to a fact as you can get without actually using a fact, this shows us how your best answer here is option B.