Final answer:
The author uses symbolism to demonstrate the emperor's foolishness in the passage.
Step-by-step explanation:
The subject of this question is English as it pertains to literature and the analysis of a literary text. In this case, the question is asking about a specific passage in which the author uses symbolism to demonstrate the emperor's foolishness.
The story is not specific to a particular grade level, but it would likely be covered in a high school English class as part of a unit on satire or literary analysis.
In the passage mentioned, the author has the emperor command his troops to march between Gulliver's legs as a way of satirically showing the emperor's foolishness and arrogance. This action is meant to be comical and absurd, highlighting the emperor's lack of wisdom and his inability to think critically or make rational decisions.