For Boolean expression S = ABC(D + E + F) + G(H + I(JK + L + O)):
a) Implement the following logic using compound CMOS gates: Draw the CMOS transistor level schematic of pull-down and pull-up network.
b) Size the pull-down and pull-up networks for the worst-case scenario. (Assume (μn)/(μp) = 4)
c) Based on your sizing results, what is the ratio of best-case and worst-case fall/rise delays?