The author of "My Brother's Keeper" emphasizes Jamie's conflict by including the incident of his parents' death.
Step-by-step explanation:
In the given options, the incident of Jamie's parents' death is the most significant factor that emphasizes Jamie's conflict in the story. The death of his parents creates a traumatic experience for Jamie and contributes to his internal struggle and emotional turmoil. This event shapes Jamie's character and influences his actions and decisions throughout the story. By including this incident, the author highlights the depth of Jamie's conflict and provides insight into the challenges he faces. While the other options may provide additional details or background information about Jamie, they do not have the same impact as the incident of his parents' death in emphasizing his conflict.