Here's a problem to solve: 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?

Among the 4 following options, which is the correct answer?

- 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.
 