An ideal gas with an initial quantity of \(n_0\) moles is contained at constant temperature \(T_0\) in a cylinder with a movable piston. The gas expands from an initial volume \(V_0\) and pressure \(P_0\) to a final volume \(2V_0\). During the expansion, a leak causes the amount of gas inside the cylinder to decrease linearly with volume, reaching \(\frac{1}{2}n_0\) when the volume reaches \(2V_0\). Which of the following graphs best represents the pressure \(P\) of the gas as a function of volume \(V\) during this expansion, where the dashed curve represents an isothermal expansion with no gas leak?