Identify the double displacement reactions among the following: - - -
1. KCl(aq) + Ag NO₃(aq) → AgCl(s) + KNO₃(aq)
2. Na₂SO₄(aq) + BaCl₂(aq) → BaSO₄(s) + 2NaCl(aq)
3. H₂SO₄(aq) + 2NaOH(aq) → Na₂SO₄(aq) + 2H₂O(1)

A.1 and 3 only
B.2 and 3 only
C.1 and 2 only
D.All of 1, 2, and 3
E.None of 1, 2, and 3