In what way does the account of the bronze serpent in Numbers 21 prefigure a key element of the New Testament's theology?

A It foreshadows the destruction of idols and the establishment of monotheism. B It emphasizes the importance of physical healing as a sign of God's favor. C It symbolizes the need for repentance and turning away from sin. D It anticipates the lifting up of Jesus Christ on the cross for the healing and salvation of humanity.