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(b) Consider the truth table shown below, and answer the following questions: i. Simplify the truth table using Karnaugh maps. [4 marks] ii. Represent the simplified function using a digital circuit. (4 marks] iii. Construct the circuit representing the truth table using 74HC151 8-input data selector/multiplexer. [2 marks] iv. Write the output logical function () of the 74HC151. (5 marks] Decimal Digit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Inputs A3 A2 A1 A1 Ao 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 Output Y 0 1 1 0 0 1 1 1 1 0 1 0 1 1 0 1