Which of the Following Statements About the Solid Structure of Ice

Which of the following statements about the solid structure of ice are true. Please select all that apply.

A) Once the hydrogen-bonded framework has broken down the density falls steadily as the temperature rises.
B) The solid structure of ice is less dense than water.
C) As the solid ice network starts to break down and molecules tumble into the holes in the framework, the density is higher at 4 °C than either the solid ice network at 0 °C or liquid water at 30 °C.
D) The solid structure of ice is more dense than water.