Final answer:
The metaphor in line 3 is "A lion among sheep". It emphasizes Odysseus' ferocity and dominance as a warrior.
Step-by-step explanation:
The metaphor in line 3 is "A lion among sheep". This metaphor emphasizes Odysseus' ferocity and dominance as a warrior. Just like a lion stands out among sheep, Odysseus stands out among other warriors with his strength and power. The metaphor adds vivid imagery to the description, making it clear that Odysseus is a formidable force to be reckoned with.