Identify all the spectator ions in the following reaction.
2KMnO₄(aq) + 10FeSO₄(aq) + 8H₂SO₄(aq) → K₂SO₄(aq) + 2MnSO₄(aq) + 5Fe₂(SO₄)₃(aq) + 8H₂O(l)
A) only K⁺
B) only SO₄²⁻
C) only K⁺ and SO₄²⁻
D) only K⁺, SO₄²⁻, and Fe²⁺
E) only K⁺, SO₄²⁻, Fe²⁺ and Mn²⁺
Answer: C