A uniform solid sphere of mass \(M\) and radius \(R\) rolls without slipping along a horizontal floor. The center of mass of the sphere moves with a constant translational speed \(v\). The rotational inertia of a solid sphere about an axis through its center of mass is \(I = \dfrac{2}{5}MR^2\). Which of the following expressions correctly represents the total kinetic energy of the rolling sphere?