just number 4 please.

3. (5 point) Design a combinational circuit that compares two 4-bit numbers to check if they are equal. It means that the circuit output is equal to 1 if the two numbers are equal and 0 otherwise. You Just draw the logic circuit. 4. (5 point + 2 effort point) Implement the following Boolean function with a multiplexer. (Just logic circuit) a) F(A, B, C, D) = (0,2,5,8,10,14) b) F(A, B, C, D) = 1/(2,6,11)