In the book of Numbers, what specific detail highlights the miraculous nature of the bronze serpent Moses was instructed to create for the Israelites?

A It was made of bronze rather than a more precious metal, emphasizing God's choice. B It had to be looked upon with faith to be effective, not merely viewed. C It was crafted by a craftsman specifically chosen and divinely inspired for the task. D Simply looking at it healed those bitten by venomous snakes (Numbers 21:9).