What was the primary significance of the bronze serpent Moses erected in the wilderness (Numbers 21:4-9), beyond simply providing a physical remedy for snakebites?

A It served as a permanent idol to be worshipped by future generations of Israelites. B It was a symbolic representation of God's judgment against the Egyptians. C It prefigured Christ's crucifixion, offering spiritual healing and salvation to those who look to Him in faith. D It demonstrated Moses' superior magical powers compared to the Egyptian sorcerers.