The four inputs A,B,C,D corresponding to each numeral are shown in the table below. Numeral Inputs Output (a) Determine the truth table for segment "b", that is, fill in the Output column "b". (b) Write the logic expression corresponding to your truth table, and minimize it using a Karnaugh map (c) Draw the corresponding logic circuit diagram using AND, OR, and NOT gates (d) Repeat for segment "c". Hint: you can do this by inspection without a Karnaugh map. Four-input Karnaugh map