Final answer:
The passage detailing the peasants' fear of being cheated best reveals the cultural setting in "A Piece of String", as it reflects the socio-economic conditions and societal dynamics of the characters.
Step-by-step explanation:
The passage that best reveals the cultural setting of "A Piece of String" is the one that provides the clearest picture of the social and physical context in which the story is set. The extract should ideally describe the environment, the interactions of the characters, and the socio-economic conditions that define the culture of the setting.
Considering this, the passage, "The peasants milked, went and came, perplexed, always in fear of being cheated.", best reflects the cultural setting as it highlights the socio-economic conditions—the suspicion and fear of being cheated among peasants—portraying the societal dynamics and the everyday concerns of the common people within the story's context.