An 8x1 multiplexer has inputs A, B, and C connected to the selection inputs S2, S1, and S0, respectively. The data inputs I0 through I7, are as follows: I1 = I2 = I7 = 0; I3 = I5 = 1; I0 = I4 = D; and I6 = D'. Determine the Boolean function that the multiplexer implements.