A student performs a conductometric titration by slowly adding \(0.10\text{ M }\text{H}_2\text{SO}_4\text{(aq)}\) from a buret into a beaker containing \(50.0\text{ mL}\) of \(0.10\text{ M }\text{Ba(OH)}_2\text{(aq)}\). The net ionic equation for the reaction that occurs is shown below.

\[\text{Ba}^{2+}\text{(aq)} + 2\,\text{OH}^-\text{(aq)} + 2\,\text{H}^+\text{(aq)} + \text{SO}_4^{2-}\text{(aq)} \rightarrow \text{BaSO}_4\text{(s)} + 2\,\text{H}_2\text{O}(l)\]

The student monitors the electrical conductivity of the mixture at three different stages during the procedure:

Stage 1: Before any \(\text{H}_2\text{SO}_4\text{(aq)}\) is added (\(0.0\text{ mL}\) added)
Stage 2: After \(50.0\text{ mL}\) of \(0.10\text{ M }\text{H}_2\text{SO}_4\text{(aq)}\) has been added
Stage 3: After \(100.0\text{ mL}\) of \(0.10\text{ M }\text{H}_2\text{SO}_4\text{(aq)}\) has been added

Which of the following correctly ranks the electrical conductivity of the mixture at each stage from greatest to least, and provides the best justification?