Final answer:
Foreshadowing is the literary purpose of the signposts in Chapter 2 of Lord of the Flies.
Step-by-step explanation:
Foreshadowing is a literary technique where the author provides hints or clues about future plot developments. In Lord of the Flies, chapter 2 contains several signposts that serve the purpose of foreshadowing. For example, when the boys discover the piglet in the forest and Jack hesitates to kill it, this foreshadows the eventual descent into savagery and violence that the boys will experience on the island.
Another signpost in chapter 2 is the boys' unsuccessful attempt to start a fire. This foreshadows the importance of fire in the story and the struggles the boys will face in their attempts to maintain it.
Overall, these signposts in chapter 2 of Lord of the Flies serve the literary purpose of foreshadowing, allowing the readers to anticipate and make predictions about future events in the story.