What is the significance of Rizpah's actions in guarding the bodies of her sons and the sons of Saul in 2 Samuel 21:10?

A It illustrates the enduring power of a mother's love and her commitment to honor her children. B It challenges David's authority by drawing attention to the consequences of his political decisions. C It highlights the importance of proper burial rites in ancient Israelite culture. D It serves as a literal account of a mother's grief, with no deeper symbolic meaning.