A rigid, planar rectangular wire loop of resistance \(R\) is forced to rotate counterclockwise at a constant angular speed \(\omega\) about a fixed vertical axis passing through its center. A uniform static magnetic field \(\vec{B}\) is directed horizontally to the right across the region. At the instant shown in the top-down view, the plane of the loop is parallel to the magnetic field. Which of the following diagrams best represents the directions of the magnetic forces exerted by the external magnetic field on the left and right vertical segments of the loop at this instant?