How does the story of Ruth, a Moabite woman, challenge the common understanding of Israelite identity and God's covenant in the Old Testament?

A It emphasizes the importance of military strength in defending the land. B It highlights God's exclusive focus on the descendants of Abraham. C It illustrates the possibility of inclusion and blessing for those outside the Israelite nation who embrace faith in God. D It demonstrates the superiority of Israelite culture over surrounding nations.