The Brønsted-Lowry theory explains how acids and bases are identified. If concentrated sulfuric acid is combined with concentrated nitric acid, the following reactions take place. $\text{H}_2\text{SO}_4 + \text{HNO}_3 \rightleftharpoons \text{HSO}_4^- + \text{H}_2\text{NO}_3^+$ $\text{H}_2\text{NO}_3^+ \rightleftharpoons \text{H}_2\text{O} + \text{NO}_2^+$ $\text{H}_2\text{O} + \text{H}_2\text{SO}_4 \rightleftharpoons \text{HSO}_4^- + \text{H}_3\text{O}^+$ Which species function as bases in these reactions?
- A1, 2 and 3 are correct
- B1 and 2 only are correct
- C2 and 3 only are correct
- D1 only is correct