In the excerpt, the author refers to the sun in a way that evokes its significance and influence over the character’s thoughts and actions. The phrase "the setting sun was a constant image that pursued him while awake and asleep" suggests that the sun is more than just a celestial body; it is an omnipresent idea tied to the character’s desires and dreams.
Given this analysis, the most accurate answer is:
C. the author uses personification to give the sun's actions human qualities.
This choice highlights how the sun is portrayed as something that "pursues" the character, suggesting a relationship and emotional connection that attributes human-like qualities to it.