Please choose the correct answer to the question: Endothermic reactions are reactions that require more energy to start than they give off in the products. Which statement describes an endothermic reaction?

Answer1: It gives off heat energy and is hot to the touch. Answer2: It absorbs heat energy and is cold to the touch. Answer3: It gives off light energy and produces visible light. Answer4: It gives off water and is wet to the touch.

Answer format: answer1/answer2/answer3/answer4