I am building a 2 bit ripple carry adder (one from logic gates and the other from 2 4:1 MUXes). I've built the first stage using logic gates with two outputs (the sum "S" and the carry out "Cout"). I am now supposed to take that Cout and build the second stage using dual 4:1 mux. I've made the truth table for the second stage but am not sure how to implement the two tables using MUXes. I would greatly appreciate it if someone could get me started on the second stage of the ripple carry adder. Thanks.