El guardia detiene a la la aduana la ruta viajera

viajera

The sentence "El guardia detiene a la ____" translates to "The guard stops the ____" in English. The word that best fits this context from the options provided is "viajera," which means "traveler." Therefore, the completed sentence is "El guardia detiene a la viajera," translating to "The guard stops the traveler" in English. Neither "la aduana" (customs) nor "la ruta" (route) would fit logically into the sentence.