A student mixes \(25.0\ \text{mL}\) of \(0.0800\ \text{M}\ \text{KI(aq)}\) with \(25.0\ \text{mL}\) of \(\text{Pb}(\text{NO}_3)_2\text{(aq)}\). The particulate representations show the ions before mixing and after \(\text{PbI}_2\text{(s)}\) forms. Every individual ion symbol represents the same amount of substance, and the same scale is used in both representations. Assume that the volumes are additive and that precipitation is complete.

Which choice correctly identifies the limiting reactant and the molar concentration of the excess reactant ion in the final mixture?