Please choose the correct answer to the question: When plants undergo photosynthesis, a reaction produces sugar, oxygen, and water. During respiration, stored energy from the products of photosynthesis is converted to usable energy. In what form is the energy stored prior to use in respiration?

Answer1: chemical energy Answer2: kinetic energy Answer3: light energy Answer4: heat energy

Answer format: answer1/answer2/answer3/answer4
Answer: answer1