Please choose the correct answer to the question: A metal spoon was left in a pot of boiling soup. The cook burned a finger by touching the spoon. Why did the finger get burned?

Answer1: The metal spoon chemically reacted with the cook's hand. Answer2: The metal spoon conducted electricity to the cook's hand. Answer3: The metal spoon conducted heat to the cook's hand. Answer4: The metal spoon insulated the cook's hand.

Answer format: answer1/answer2/answer3/answer4