A block of mass \(m\) rests on the rough inclined surface of a wedge that makes an angle \(\theta\) with the horizontal, where the incline slopes downward to the right. The wedge accelerates horizontally to the right across a horizontal floor with a constant acceleration \(a\) such that \(a > g\tan\theta\), and the block does not slip relative to the wedge. Which of the following free-body diagrams best represents all the forces exerted on the block, as observed from an inertial frame of reference?