H=(A'+C)(D'+C)(C'+B)
(A) Assume that the inverters have a delay of 1 ns and the other gates have a delay of 2ns. Initially A = 0 and B = C = D = 1, and C changes to 0 at time = 2ns. Draw a timing diagram and identify the transient that occurs.
(B) Modify the circuit to eliminate the hazard.