Respuesta :
Based on the given thesaurus entries and sentence provided, the word "peak" best completes the sentence. This is because the sentence describes the hikers being elated after climbing for hours and finally catching a glimpse of something. In this context, "peak" fits best as it refers to the top of a thing, which aligns with the idea of the hikers reaching a high point or summit after their climb.
Additionally, the phrase "After climbing for hours" provides a context clue that supports the answer. This phrase indicates a period of physical exertion and effort, which suggests that the hikers were reaching a high point or summit after their strenuous climb. This context aligns well with the meaning of "peak" as the top of a thing or a summit.
Therefore, in this context, "peak" is the most suitable word to complete the sentence based on the description of the hikers' experience and the context provided.