Final Answer:
The phone call Mark's mother received on the day he was playing with Jessie in the sprinkler might have been about a significant development or an urgent matter that required her immediate attention.
Step-by-step explanation:
In the narrative of "The Honest Truth," the phone call serves as a narrative device to introduce tension and raise questions about the unfolding events.
While the specific content of the call is not explicitly disclosed in the question or may vary based on individual interpretations, it is evident that the call is pivotal to the plot.
It could be related to Mark's health, an unexpected situation, or any other circumstance that interrupts the carefree moment with Jessie in the sprinkler.
The purpose of this literary device is to engage readers and create anticipation, prompting them to speculate on the nature of the call and its potential impact on the storyline.
The ambiguity surrounding the call adds an element of suspense, encouraging readers to delve deeper into the narrative to uncover the secrets and challenges faced by the characters.
In conclusion, the answer to the question is intentionally left open-ended, aligning with the narrative style of the book.
The phone call's content remains a mystery, inviting readers to explore the unfolding events and complexities within "The Honest Truth."