A diagram is meant to show a solution containing both CaCl₂ (a strong electrolyte) and sucrose, C₁₂H₂₂O₁₁ (a nonelectrolyte). The fixed-volume box contains the following features:
• Three particles labeled “Ca²⁺,” each surrounded by water molecules with the hydrogen atoms pointing toward the ion.
• Six particles labeled “Cl⁻,” each with water molecules oriented correctly.
• Four sucrose particles depicted as “C₁₂H₂₂O₁₁⁺” and “C₁₂H₂₂O₁₁⁻,” each wrapped in oriented water molecules.
Which combination of statements identifies ALL of the representation errors in the diagram?
I. Water molecules are oriented incorrectly around Ca²⁺ ions.
II. Sucrose is incorrectly shown dissociated into ions.
III. The Ca²⁺ : Cl⁻ ratio does not match the formula of CaCl₂.
a) II only
b) I only
c) I and II only
d) II and III only