Examining the miracle of the bronze serpent in Numbers 21:4-9, beyond its immediate effect of healing, what theological concept does it foreshadow in the New Testament?

A The importance of temple sacrifices for atonement. B The concept of divine judgment being solely based on obedience. C The substitutionary atonement of Christ on the cross, where He became a curse for us. D The necessity of adhering to strict dietary laws for spiritual purity.