Considering the cultural context of ancient Israel, what significant societal function did the kinsman-redeemer (goel) serve, as exemplified in the book of Ruth?

A To lead the Israelite army in times of war and conquest. B To ensure the continuation of a family line and protect its property rights. C To serve as a high priest in the temple, offering sacrifices for the people. D To collect taxes and enforce laws on behalf of the king.