What theological significance can be derived from the story of the bronze serpent in Numbers 21, particularly in its connection to the New Testament?

A It demonstrates the futility of idolatry and the importance of monotheism. B It foreshadows the coming of a great military leader who will deliver Israel from its enemies. C It symbolizes the power of nature and the need to respect the environment. D It prefigures Christ's crucifixion, offering healing and salvation to those who look to Him in faith.