Final answer:
The missing word in the sentence should be 'al gerente de la tienda' which means 'to the store manager' in Spanish.
Step-by-step explanation:
The sentence is in Spanish and the missing word should be in Spanish as well. Among the given options, the phrase that best completes the sentence is al gerente de la tienda which means 'to the store manager'. This option makes the most sense in the context of the sentence.
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