Please choose the correct answer to the question: Perfume sprayed from a bottle spreads more easily in a warm room of 25°C than in a cool room of 15°C. Which of the following correctly compares perfume molecules at 25°C to those at 15°C?

Answer1: At 25°C, they have more mass. Answer2: At 25°C, they are moving faster. Answer3: At 25°C, they have less kinetic energy. Answer4: At 25°C, they are decreasing in volume.

Answer format: answer1/answer2/answer3/answer4