In this excerpt, the narrator becomes part of the story
when he speaks in first person. Which line shows a
switch to first-person narration?

hope this helps :)

Explanation:

First person uses the pronouns I and my. In the first person, the speaker describes or talks about him or her.

i think the best answer would be d allowing 30 seconds between response would give time for what was already said to sink down in your mind.