How does the story of Hagar (Genesis 16 and 21) challenge or expand the understanding of God's covenantal promises beyond the immediate lineage of Abraham and Sarah?

A It demonstrates that God's promises are solely contingent on human obedience. B It reveals God's compassion and provision for those who are marginalized and seemingly outside the primary covenant line, indicating a broader scope of divine care and blessing. C It proves that God favors those who are born into privilege. D It shows that God only cares about Abraham's descendants.