The solution of FeSO₄ is

Explanation

Iron(II) sulfate, FeSO₄, when dissolved in water, undergoes hydrolysis. The sulfate ion (SO₄²⁻) comes from a strong acid (H₂SO₄), while the Fe²⁺ ion is a moderately strong acid when hydrated. This results in an overall acidic solution due to the release of H⁺ ions. Option A is correct. Option B is incorrect because basic solutions typically arise from salts of weak acids and strong bases, which is not the case here. Option C is incorrect as the solution is not neutral; it is acidic due to the dissociation of FeSO₄. Option D is incorrect because FeSO₄ does not exhibit amphoteric properties.