Final answer:
An author would most likely include a dialogue that hints at future events or outcomes when using foreshadowing.
Step-by-step explanation:
When using foreshadowing, an author would most likely include a dialogue that hints at future events or outcomes. Foreshadowing is a literary device used to provide clues or hints about what will happen later in the story. In the given options, the dialogue that best represents foreshadowing is the one where Sarah says, 'I really don't have a good feeling about this, but if you say so, I'll come along.' This dialogue suggests that something negative or potentially dangerous might happen in the future.
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