nestion 5: (20 points) onsider the following circuit involving four D-flip-flops: D&, D2, DQ, De CE Reset a. Write the equations of QO, Q1, Q2 and Q3. (5p4 b. Draw the state table where (q3, 42, ql and q0) are inputs, and (3, Q2, Q1 and Q0) ar outputs. (10) 6. Draw the state diagram starting from q3q2q1q0=0000. (5p