Write a Balanced Chemical Equation for the Disproportionation of Chlorate

Write a balanced chemical equation for the disproportionation of chlorate ion in water.The products are chloride and perchlorate ions.

A) 2ClO₃−(aq) + H₂O(l) → Cl−(aq) + ClO₄−(aq) + 2H⁺(aq)
B) 3ClO₃−(aq) + 2H₂O(l) → Cl−(aq) + 2ClO₄−(aq) + 4H⁺(aq)
C) 4ClO₃−(aq) → Cl−(aq) + 3ClO₄−(aq)
D) 4ClO₃−(aq) → 2ClO₂−(aq) + 2ClO₄−(aq)
E) 5ClO₃−(aq) + 6H⁺(aq) → 2Cl−(aq) + 3ClO₄−(aq) + 3H₂O(l)