What aspect of a character's journey is detailed by sub-objectives?

Sub-objectives refer to the smaller, specific goals that a character aims to achieve within the larger context of their overall character arc. These sub-objectives help to define the character's journey and provide depth to their motivations and actions. They contribute to character goals, which are integral in moving the plot forward and shaping the character's experiences throughout the narrative.

In this context, the journey reflected through sub-objectives focuses on how the character will progress or evolve based on these smaller, manageable goals they pursue. While the overall plot provides the framework for the story and scene changes indicate shifts in the action or location, and relationship development portrays how a character interacts with others, sub-objectives are solely centered around the individual character's internal drive and specific aims within the story.

This highlights that the correct answer is indeed centered on character goals, as sub-objectives specifically inform and enhance the understanding of what a character wishes to achieve at various stages of the story.