1.) X, Y are one bit selection input, A = A3A2A1A0, B = B3B2B1B0, and C = C3C2C1C0 are 4 bits long input data. Design the circuit that will give the Zoutput values given in the table according to the selection inputs, within the following constraints. -Only one 4-bit full adder can be used. -Multiplexer can be used. (If non-standard, the circuit providing the function should be shown). - Logic gates can be used. A B C XY z 0 0 A+B 01 A+C 1 0 B 1 1B+C ? y- Z