(b) Consider the truth table shown below. and answer the following questions: 1. Simplify the truth table using Karnaugh maps [4 marks) li. Represent the simplified function using a digital circuit 14 marks) I. Construct the circuit representing the truth table using 74HC151 8-input data selector/multiplexer 17 marks) iv. Write the output logical function () of the 74HC151 15 marks) Table (b) Truth table Decimal Inputs Output Digit A A A A Y 0 0 1 1 2 0 3 1 4 0 5 1 1 6 1 7 1 1 8 1 1 9 1 1 10 1 1 11 1 1 12 1 1 13 1 1 1 1 14 1 1 1 0 15 1 1 1 1 1 Oolo OOO OOOOO OOOOOOOO OOOOOOOO POLO-OOOOOO OOO