You've been asked to use Bilinear Transformation (use T = 2) to design a Butterworth lowpass filter that satisfies certain given discrete-time specifications. If you obtain the following values for N and 2: N= 1.25 and 2 = 0.9 Answer the following: A) Plot the poles of the filter on the s-domain pole-zero plot B) Using the obtained poles, find He(s) C) Using He(s), find H(z)