Questions Assume that the 4-bit arithmetic circuit, shown in figure below (Fig. 4-9 in the textbook), is enclosed in one IC package. Show the connections among two such ICs to form an 8-bit arithmetic circuit. FA D i Mu FA ??? D, 1 Mua Xy FA-D ??? Questinn 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,-1 Cin-0 D A + 1 (increment 1 D-A+2 (increment by 2) D AB+1(add with carry)