Which of the Following Represents a Disproportionation Reaction

Multiple Choice

Which of the following represents a disproportionation reaction?

A) Br₂(l) + H₂O(l) → HOBr(aq) + Br^-(aq) + H⁺(aq)
B) S(s) + SO₂(g) + H₂O(l) → S₂O₃^2-(aq) + 2 H⁺(aq)
C) HOCl(aq) + OH^-(aq) → H₂O(l) + OCl^-(aq)
D) 3 S^2-(aq) + 2 CrO₄^2-(aq) + 8 H₂O(l) → 3 S(s) + 2 Cr(OH) ₃(s) + 10 OH^-(aq)
E) HF(aq) → H⁺(aq) + F^-(aq)