Answer: D) high school students; to inspire them to study.
Explanation: When writing, an author can have different purposes (to persuade, to inform, to criticize, to entertain, etc) according to the audience he/she is addressing and the impact that he/she wants to create. From the given options, the one that represents the most likely audience and purpose for the passage, is the corresponding to option D: high school students; to inspire them to study, we can know that because the speaker talks about final exams and graduation ceremony.
