A block of mass \(M\) is released from rest at the top of a frictionless incline of height \(H\). A solid sphere of mass \(M\) is released from rest at the top of a second incline of the same height \(H\) and angle \(\theta\). The second incline has a rough surface such that the sphere rolls without slipping. Which of the following correctly compares the time it takes for each object to reach the bottom of its respective incline and provides a correct justification?