Final answer:
The incorrect reason for Reynolds' writing of Shawn's death is to emphasize the importance of soap for eczema; typically, such an event is used to elicit emotion, propel the plot, or illustrate life's uncertainty.
Step-by-step explanation:
The reason NOT attributed to Reynolds' purpose in writing Shawn's death that way is B) To emphasize the significance of the soap for his mother's eczema. While creating a sympathetic and emotional connection, advancing the plot, and highlighting the unpredictability of life are common literary purposes for depicting a character's death, focusing on the significance of the soap would be an incidental detail and not a primary reason for illustrating such a tragic event. In literary analysis, authors use death to evoke various emotions and themes, often relating to the human condition, psychological conflicts, as found in the depth of analysis required in plays like Hamlet or King Lear. However, the specific utility of an object like soap, even for an ailment such as eczema, does not ordinarily constitute a central theme or narrative drive in literature, unlike the profound and complex emotions and philosophical struggles of life and mortality.