i) Use an XOR gate and an AND gate to build a half adder and complete the truth table below. Take a picture/snapshot of your circuit and attach it here: ii) Join two half adders in part i) together to form a full adder and complete the truth table below. Take a picture/snapshot of your circuit and attach it here: iii) Join 4 full adders together to form a 4-bit ripple adder and perform the following operation. Provide screen shots of your circuits showing the corresponding binary inputs and outputs. iiii) Now, try implementing the full adder in Part ii) a) Provide screen shots of your circuits showing clearly the corresponding binary inputs and outputs for 1+1 in binary. State in this report clearly which are the inputs and outputs on the circuit board b) join two full adders together so that it can perform 2-bit addition and substraction. Provide screen shots of your circuits showing clearly the corresponding binary inputs and outputs for 01 + 11 and 10 – 01 in binary. State in this report clearly which are the inputs and outputs on the circuit board.