Why Does Liquid Water Expand Slightly When Cooled from 4°C

Why does liquid water expand slightly when cooled from 4°C to 2°C?

A) The molecules vibrate faster and the molecules move farther apart.
B) The molecules vibrate faster and the molecules move closer together.
C) The molecules vibrate slower and the molecules move farther apart as hydrogen bonds form.
D) The molecules vibrate slower and the molecules move closer together as hydrogen bonds form.
E) none of the above