Design an arithmetic circuit with one selection variable S and two 4-bit data inputs A and B. The circuit generates the following four arithmetic operations in conjunction with the input carry Cin. Draw the logic diagram for the circuit. Cin- 0 D-? + B' (subtract with borrow) A +2(increment by 2) | D-A + 1 (increment by 1) 1 D D = A + B + (add with carry)