Which Statement Is True About Hydrogen Bonds Between Water Molecules

Which statement is true about hydrogen bonds between water molecules?

A) They are about as strong as the covalent bonds in a water molecule.
B) They arise because of the linear geometry of water.
C) They cause water to have an unusually low freezing point for its molecular weight.
D) They involve the unequal sharing of a proton between water molecules.
E) In liquid water the same molecules attract to each other over long time periods.