Which of the Following Reactions Shows the Formation of a Compound

Multiple Choice

Which of the following reactions shows the formation of a compound that is responsible for the damage of marble buildings and sculptures by acid rain?

A) H₂SO₃(aq) + Ca(OH) ₂(s) → CaSO₃.2H₂O(s)
B) CaO(s) + H₂O(l) → Ca(OH) ₂(s)
C) CaCO₃(s) + H₂SO₄(aq) → CaSO₄(s) + H₂O(l) + CO₂(g)
D) 2N₂(g) + 5O₂(g) + 2H₂O(l) → 4HNO₃(aq)
E) 2H₂SO₃(aq) + O₂(g) → 2H₂SO₄(aq)