Why might a person trying to persuade you toward their point of view use a graph to present information?

To appeal to your sense of logic/reason.

Explanation:

i say that the right answer is: three personal subject pronouns. that’s because you will see “she” two times, referring to the librarian, and “they” one time, referring to the books. personal subject pronouns are used to replace common nouns or proper names.

the only possessive noun it’s present on the first sentence, when the speaker refers to “his” father.