A rigid disk is mounted on a fixed, frictionless axle and is initially at rest at time \(t = 0\). Starting at \(t = 0\), a net external torque \(\tau(t) = \tau_0 \sin(\omega t)\) is exerted on the disk about the axle, where \(\tau_0\) and \(\omega\) are positive constants. Which of the following graphs best represents the angular momentum \(L\) of the disk as a function of time \(t\) from \(t = 0\) to \(t = \dfrac{2\pi}{\omega}\)?