The correct answer is II. Spiders are powerless should a rock fall on them.
Step-by-step explanation: In "Sinners in the Hands of an Angry God" by Jonathan Edwards, the author uses a metaphor to explain how low God considers sinners to be, and that they are weak in the face of his wrath. Edwards compares spiders to sinners because of how weak and loathesome they are, and the spider's web represents the sinner's congregation. The rock falling through the web represents God's strength and gravity towards sinners.