In the story of Mephibosheth (2 Samuel 9), what does David's treatment of Jonathan's disabled son reveal about David's understanding of covenant and kingship?

A It demonstrates David's adherence to the common practice of eliminating potential threats to his throne. B It primarily highlights David's personal friendship with Jonathan, overriding any political considerations. C It exemplifies David's commitment to honoring his covenant with Jonathan, extending grace and provision to Mephibosheth as a demonstration of loyal love (hesed). D It mainly serves as a public relations strategy to improve David's image among the people.