Final answer:
The sentence that uses the Preterit Tense is "La policía y la ambulancia llegaron."
Step-by-step explanation:
The sentence that uses the Preterit Tense is option a. "La policía y la ambulancia llegaron." The Preterit Tense is used to describe actions that were completed in the past, and it is typically indicated by specific past tense verbs.
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