Problem 3. Consider the following logic function. f(A,B,C,D)=m(0, 4, 5, 10, 11, 13, 14, 15) (a) Find two different minimum circuits which implement f using AND and OR gates. Identify two hazards in each circuit. (b) Find an AND-OR circuit for f with no hazards. (c) Find an OR-AND circuit for f with no hazards.