An object of mass \(m\) is launched vertically upward from ground level with an initial speed \(v_0\). As the object ascends, it experiences a downward drag force of magnitude \(F_d = bv\), where \(b\) is a positive constant and \(v\) is the speed of the object. Acceleration due to gravity is \(g\). Which of the following expressions gives the maximum height \(y_{\text{max}}\)