a)A two-output function is shown in the Karnaugh maps inFigure 5. 'X' means 'don't care'. i.Minimize the function using multiple-output minimization techniques. ii.Draw the structure of a programmable logic array

(PLA)to implement this function, showing the programming links. Derive the delay needed for a 3-bit carry look-ahead adder to produce its output. Explain any assumptions you make. If this adder is to be used in a block adder scheme, derive its G' and P'expressions. Why does this version use the G' and P' signals?b)