Considering the cultural context of the ancient Near East, what was the primary societal purpose of the kinsman-redeemer (goel) as exemplified in the book of Ruth?

A To ensure the economic prosperity of the ruling class by consolidating land ownership. B To maintain tribal purity by preventing marriage outside of the immediate family. C To preserve the family name and inheritance of a deceased relative, providing security for widows and orphans. D To facilitate trade agreements between different Israelite clans and neighboring nations.