Please choose the correct answer to the question: Sam builds a ramp and lets a toy car roll down. Which describes the energy of the car as it rolls down the ramp?

Answer1: The kinetic energy and the potential energy both increase. Answer2: The kinetic energy and the potential energy both decrease. Answer3: The kinetic energy increases and the potential energy decreases. Answer4: The kinetic energy decreases and the potential energy increases.

Answer format: answer1/answer2/answer3/answer4