Final answer:
The dissociation of water involves pairs of water molecules, and as H+ ions are formed, they bond with H₂O molecules to form H3O+. This process is quickly reversed, resulting in the formation of neutral water molecules.
Step-by-step explanation:
The dissociation of water involves pairs of water molecules. As H+ ions are formed, they bond with H₂O molecules in the solution to form H3O+. This is quickly reversed, giving neutral water molecules. Therefore, the correct answer is (b) Both (b) and (c).