Help needed, questions from A-D, please show all the steps.

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3. (4+ 2 + 9 + 5 = 20 points) Word Problem to Gate implementation Consider a 4-input (W, X, Y, Z) and 1-output function that has logic-l output whenever the majority of the inputs are logic-0. a. Draw the truth table representing this function. b. Express the function in sum of minterms format. C. Simply the expression from above using algebraic simplification method. d. Draw the combinational circuit for the simplified expression