Create a truth table for your circuit that lists the following: X1, X2, S, D, Q, and Not Q. X1 and X2 are input signals to the multiplexer, and S is the multiplexer selector signal. D is the input to the flip-flop, and Q and Not Q are the outputs of the flip-flop. In addition, create the boolean algebra expression for the output of the multiplexer that uses the X1, X2, and S signals.