What unique aspect of Melchizedek's priesthood (Genesis 14:18-20), who blessed Abraham, foreshadows the ministry of Jesus Christ as presented in the book of Hebrews?

A His priesthood was based on strict adherence to Levitical law and animal sacrifices. B His priesthood was hereditary and passed down through generations. C His priesthood was temporary and contingent upon his moral perfection. D His priesthood was eternal, not based on lineage or earthly regulations, representing a superior order.