When Water Freezes, It Expands

Multiple Choice

When water freezes, it expands. What does this say about the density of ice compared with the density of water?

A) The density of water and ice are identical since they have exactly the same chemical formula.
B) The expansion of water when it freezes to ice changes its volume, not its density.
C) Ice is less dense than water because it has more volume for the same mass.
D) Ice is more dense than water because it has more volume for the same mass