Hydrogen compounds and states of matter

[n108]

Chemical properties of hydrogen compounds can have vast differences depending on the state of matter that the substance is in - solid, liquid or gas. The difference in chemical properties is related to

the dissociation of H+ from the hydrogen compound into solution.

the dissociation of OH- from the hydrogen compound into solution.

the energy threshold required to break the covalent bonds in the solid.

the slight cohesion of the liquid solvent forming the aqueous solution.

I think the answer is D - it has nothing to do with hydrogen bonding...but I am not sure at all.
HELP! PLEASE!

 

[Bystander]

"Phase behavior" is a function of the compound's "colligative properties;" so, yes, "D."