Pregunta: The following diagram shows the implementation of an adder using Full-Adders:A 4-bit circuit design is needed with one input A = {A₀, A₁, A₂, A₃}, another input B = {B₀, B₁, B₂, B₃}, and the output S = {S₀, S₁, S₂, S₃}.a)

The following diagram shows the implementation of an adder using Full-Adders:

A 4-bit circuit design is needed with one input A = {A₀, A₁, A₂, A₃}, another input B = {B₀, B₁, B₂, B₃}, and the output S = {S₀, S₁, S₂, S₃}.

a) Modify the displayed circuit to execute the operation Y = A + 1 if A represents an even number. Draw the circuit.

b) To the circuit from part a, add the necessary logic so it also executes the operation Y = A - 2 if A represents an odd number. You must respect the logic shown in part a. Draw the circuit.

c) Draw the schematic of the resulting circuit from part b, adding a way to detect if there was an overflow.

d) Using Tinkercad, assemble the circuit based on the designs and schematics from the previous parts. Provide a link or screenshot of your finalized design in Tinkercad.