How does Gulliver help the Lilliputians during his stay?

Gulliver's significant contribution to the Lilliputians during his stay involves his physical prowess, particularly when he pulls their ships in the war against Blefuscu. This act demonstrates his strength and willingness to assist the Lilliputian people in their time of conflict. By employing his size and capabilities, he becomes a pivotal figure in their efforts, showcasing how his involvement directly impacts their military endeavors and helps to defend their kingdom.

The other options, while they may seem plausible, don't accurately reflect the actions Gulliver takes during his time with the Lilliputians. He does not focus on teaching them navigation skills or building ships, nor is there an emphasis on negotiating peace treaties in the context of the narrative. Instead, his role is most vividly depicted through his direct involvement in their warfare, particularly his impressive feat of hauling ships, which becomes a crucial aspect of the Lilliputians' military strategy against their rivals.