Which answer would this be?

C. To expand empires

Explanation:

Colonies were formed so that European countries could expand their empire outside of Europe.

“the iliad” (gr: “iliás”) is an epic poem by the ancient greek poet homer, which recounts some of the significant events of the final weeks of the trojan war and the greek siege of the city of troy (which was also known as ilion, ilios or ilium in ancient times).