Final answer:
Antenor's argument that Helen should be returned to Menelaus in order to end the Trojan War suggests a peaceful resolution and avoiding further violence.
Step-by-step explanation:
Antenor argues that returning Helen to Menelaus could end the Trojan War by resolving the main cause of the conflict. He believes that if Helen is returned, it would satisfy the Greek honor code and provide a way for both sides to save face and avoid further bloodshed. By suggesting a peaceful resolution, Antenor implies that the war can be resolved without more violence and destruction.