Please help 40 points I WILL mark BRAINEST!!!!!! first person who answers correctly

Answer:
I would like to plot the time response of a step disturbance of a control system, but I am not sure what I have to plot.
I have tried to plot the step response of the Sensitivity function, but I am not sure it is the correct thing to do. So, what I have done is something like:
Step-by-step explanation: