A person of mass \(m\) stands at rest on a digital force plate fixed to the floor of an elevator ascending at a constant speed. At time \(t_1\), the person rapidly bends their knees into a crouch and then immediately extends their legs to jump vertically upward. The person leaves the surface of the plate at time \(t_2\) and remains airborne until time \(t_3\). Which of the following graphs best represents the normal force \(F_N\) exerted by the plate on the person as a function of time \(t\) from \(t = 0\) to \(t = t_3\)?