Final answer:
d) Eli experiences a life-changing event when he leaves Serenity for the first time, which is pivotal to his character development and the story.
Step-by-step explanation:
When Eli leaves Serenity the first time, d) he experiences a life-changing event. This event is critical to his character development and the plot of the story.
As part of the narrative, such events often signify a turning point for characters, where their perspectives and attitudes may undergo significant transformations.
This life-changing event could encompass a variety of scenarios that have a profound impact on Eli's journey, both personally and within the context of the story's broader themes.