The primary purpose of the last paragraph is to motivate. Thus, option (b) is correct.
What is motivate?
The term “motivate” comes from the word “motive,” which also refers to needs, ambitions, and goals. To motivate is encourage someone about her quotation, thoughts, and ideas.
The final sentence's main goal is to motivate the reader. The author is passionate about her expertise. Motivation is a shift in thinking and action.
Therefore, Option (b) is correct.
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