(15 points): use the bode command in matlab to plot the bode plots of the following transfer functions. carefully observe how different terms modify the bode magnitude and phase plots. for each transfer function, include a brief (1-2 sentence) statement that describes how its bode plots compare with the bode plots of similar transfer functions in the list below. (a) l(s) = s(s +1)(s +5)/(s + 10) (s +2) (b) l(s) = s(s+1)(s+5)(s+ 10) , , )/(s + 2)(s + 6) (c) l(s) = s(s+1s +5)(s + 10)/(s + 2)(s + 4) (d) l(s) = s(s + 1)(s+5)(s + 10)