Task: Question Answering
Input (English): 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?  
 (A) At 25°C, they have more mass. (B) At 25°C, they are moving faster. (C) At 25°C, they have less kinetic energy. (D) At 25°C, they are decreasing in volume.
Output (English): B