Here's a problem to solve: Two identical containers each hold one liter of water. One container is kept at room temperature as a liquid. The other container is placed in a freezer and kept as a solid. Which property is most likely to be the same in both states of matter?

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

- A: density
 
- B: mass
 
- C: shape
 
- D: volume
 