The miracle of the bronze serpent in Numbers 21:4-9 is often interpreted as a prefigurement of Christ. What is the primary theological significance of this connection?

A It highlights the importance of physical healing as a sign of God's favor. B It demonstrates that obedience to religious leaders is essential for salvation. C It illustrates how God can use seemingly negative things (the serpent, a symbol of sin) to bring about salvation through faith and looking to Christ. D It emphasizes the power of objects to transmit divine grace.