In the book of Ruth, beyond her loyalty to Naomi, what deeper theological theme does Ruth's story exemplify regarding God's plan of redemption?

A It highlights the importance of maintaining ethnic purity within the Israelite community. B It primarily serves as a historical account of ancient marriage customs. C It underscores the universality of God's grace and inclusion, as Ruth, a Moabite woman, becomes part of the lineage of Jesus Christ, demonstrating God's redemptive plan extending beyond Israel. D It teaches that material wealth is a sign of God's favor.