Beyond the immediate act of obedience, what does the near-sacrifice of Isaac in Genesis 22 foreshadow concerning God's character and plan of redemption?

A It solely demonstrates Abraham's unwavering faith and obedience as a model for believers. B It primarily illustrates the importance of child sacrifice in ancient Near Eastern cultures. C It prefigures God's ultimate sacrifice of His own Son, Jesus Christ, highlighting His immense love and provision of a substitute for humanity's sin. D It mainly serves as a warning against questioning God's commands, regardless of their apparent morality.