Beyond the immediate narrative of familial strife, what theological purpose does the story of Judah and Tamar (Genesis 38) serve in the broader context of the Old Testament?

A It primarily serves as a condemnation of Canaanite cultural practices. B It highlights the importance of maintaining strict patriarchal lineage and control over female sexuality. C It demonstrates God's providential work in preserving the Messianic line through unconventional and morally ambiguous circumstances, foreshadowing the inclusion of Gentiles in God's plan. D It functions as a cautionary tale against intermarriage, emphasizing the dangers of cultural assimilation.