a$.$ The State Table for the above circuit is:

$\backslash$table$[[$Present State,$\frac{\text{N}\text{e}\text{x}\text{t}\text{S}\text{t}\text{a}\text{t}\text{e}}{A^{**}{B}^{**}},$Output$],[AB,,],[,x=0,\stackrel{}{x}=1,\stackrel{}{x}=0,x=1$