A Boolean function f of two variables X and Y is defined as follows: f(0, 0) = f(0, 1) = f(1, 1) = 1; f(1, 0) = 0 Complements of X and Y are not available. How much would have been a minimum cost (units) solution for realizing using only 2-input NOR gates and 2-input OR gates (each having unit cost)? a) Create truth table b) Write the function c) Implement the function (logic gate diagram)