Task: Question Answering
Input (English): Propane (C_{3}H_{8}) is a gas at room temperature. Which statement best describes the physical characteristics of a sample of propane at room temperature?  
 (A) It has a definite volume and takes the shape of its container. (B) It has an indefinite volume and takes the shape of its container. (C) It has a definite volume, and its shape is independent of its container. (D) It has an indefinite volume, and its shape is independent of its container.
Output (English): B