Beyond its literal function, what deeper symbolic meaning can be attributed to the practice of gleaning, as exemplified by Ruth in the fields of Boaz?

A It was a system designed to ensure that landowners never ran out of workers. B It was a purely economic activity with no social or religious significance. C It was a divinely ordained provision to care for the poor, widows, and orphans, reflecting God's compassion and justice. D It was a method for wealthy landowners to publicly display their generosity.