The author's purpose in the excerpt from "The Leader in the Mirror" is to inspire.
The author's purpose is the purpose or intent of the author behind the writing. The purpose of the author may be to persuade the reader, to inform, to inspire, or to amuse the reader.
In the excerpt, the speaker is trying to inspire the students and motivate them to face the challenges and succeed in the different fields.
Therefore the correct option is B.
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