You are going to design a combinational circuit which has 4 inputs w, x, v. z and 4 outputs A, B, C and D. The features of the circuit are; Inputs (w, x, y, z) Binary Code Outputs (A, B, C, D) Gray Code The circuit encodes Input Bit Sequence (Binary Code) to Gray Code. You are going to; a) Fill the truth table according to your design. b) Find the simplified AND-OR expressions for all 4 outputs (Sum of Product) by using 4-variable K-map. c) Draw the logic diagram of the simplified functions of all 4 outputs by using just 2- inputs-Logic gates.