A student performs a demonstration by releasing a solid sphere and a uniform solid disk from rest at the top of an incline of height \(H\). Both objects have the same mass \(M\) and radius \(R\) and roll down the incline without slipping. The rotational inertia of the sphere is \(I_S = \dfrac{2}{5}MR^2\) and the rotational inertia of the disk is \(I_D = \dfrac{1}{2}MR^2\). Which object reaches the bottom of the incline in the least amount of time, and why?