Final answer:
The most logical conclusion is that a stranger reports Alicia stealing.
Step-by-step explanation:
The most logical conclusion to this story would be that a stranger catches Alicia stealing and reports her. Since Caleb sees Alicia stealing money from the cash register a second time, it implies that she has been doing it consistently. Caleb may not confront Alicia himself, but a stranger notices her actions and decides to report her. This conclusion aligns with the information provided in the passage.
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