The statements that best describe the author's purpose are "to present background information about Nina" and "to intrigue the reader with details about Nina."
In literature, we use the term purpose to refer to the objective or goal an author has while writing. A text can have one general purpose, and each paragraph can present its own smaller purpose. Here, we are to analyze the passage from "Sugar Changed the World" and identify two purposes in it.
The authors provide information about Nina in the passage. After analyzing such information, we can identify two purposes:
We can achieve the conclusion that those two purpose are the correct answer because of the type of information that is presented. We get know a little about Nina's past but, in general, she is described as quite a mysterious figure.
With the information above in mind, we can choose options 1 and 3 as the correct answers for this question.
Learn more about purpose here:
https://brainly.com/question/10336721
#SPJ1