9)Draw a hazard free AND‐OR circuit for the K‐MAP below and then draw a hazard free OR‐AND circuit. Remember a SOP equation is created by circling the ones and generates an AND‐OR circuit. A POS equation is created by circling the zeros and generates an OR‐AND circuit. ሺ0,4,5,7,8,9,10,11,12,13,15ሻ݉ ൌ ܨ10)Repeat the previous problem but do not add the group making the AND‐OR circuit hazard free. a.What is the expected output when A=1,B=1,C=0 and D=1? b. What is the expected output when A=1,B=1,C=0 and D=0?c. Assume A=1,B=1 and C=0. Create a timing diagram that shows a glitch (momentary 0) occurring on the output when D changes from 1 to 0. Assume all gates have a 5ns propagation delay.