Only #4, thanks.

4- Using four-variable k-maps. i- Use the following k-map to insert the logic values that corresponds to 0 or 1 for ii- The K-map given below is for F(A, B, C, D) ABCD+AB C'D+A B'C'D+ A BCD+AB C'D+AB CD+ ABCD + ABCD'+ABCD Which one of the following expressions represents the simplified Boolean function for F? b-F-CD+AB+AD c-F-CD+AB+AD d-F-ACD +AB+AC +AD f- None of the above iii- Which one of the following expressions represents the simplified Boolean function for; F(A, B, C, D)-A BCD +A B'CD+ AB CD'+AB CD+AB C D+ ABC D+ A BCD ABC D+ A BCD+ABCD + e- F AD+C f- None of the above 5