2. 3-bit Excess-2 Logic Design Excess-2 Logic is a very simple circuit that creating a result of A+2 when A is input to the circuit. For example, when 3 is input, 5 will be output. When 7 is input, 9 will be output. For a 3-bit Excess-2 Logic, we are going to have 4-bit output. (a) Based on the description above, construct the Truth Table of 3-bit Excess-2 Logic Circuit. A Ao B2 . A2 0 ; 0 0 0 0 0 1 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 (b) Without using minimization, write down the Boolean expression of four output bits: Bz = B2= B = B. =