Take two two-digit binary numbers. The first will be represented by XY, with X being the most significant digit, Y the least significant. The second will be AB, with A being the most significant digit, B the least. Your function will multiply these two numbers, XY*AB, and store the resulting binary number in S1S2S3S4, with S1 being the most significant digit, S4 being the least significant digit.

(2.1) Create a Truth Table for the desired input and output. (2.2) Fill in the K-Maps provided properly. (2.3) Create the logical expressions for each output. (2.4) Create the circuit for this expression.