the following questions n word or other tool. Cite the resources where you get the hint or clue of Read through the lecture notes and tutorial of Verilog HDL complete your answer. I. a) Write the Verilog code for a full subtracter using logic equations. Iype your solution i b) Write Verilog code for a 4-bit subtracter using the module defined in (a) as a component. 2. In the following Verilog code. A. B. C, and D are 0 at time 10ns. If D changes to 1 at 20ns, specify the times at which A, B, and C will change and the values they will take. a) always @(D) begin #5 A