PLEASE HELP How does the section "The Roots of War" contribute to the development of the ideas in "How Archaeologists Found the Lost City of Troy"?

It describes the several layers of Troy found buried under a mound in Turkey.

It reveals accounts of Troy's fall by authors other than Homer.

It contrasts Homer's explanation for the cause of the war with modern theories.

It recounts how Odysseus came up with the plan to use the wooden horse.