Answer:
Hi!
The answer to that would be option A, a narrative describing what a person learned.
Step-by-step explanation:
This passage is written in first person and it's veru personal. It starts by the author commenting on an expression he heard and the passage evolves to him finding out the meaning of that expression and him analysing and pondering on it. Although the author does present a valid inference which could lead us to think the answer might be option B, the main topic presented at the beginning of the paragraph is a narrative describing what a person learned, so therefore, this is the answer.