Part 4: Design a combinational circuit with K-Map The circuit to be designed consists of four inputs and one output. Typically such circuit can be implemented using a combinational network. A truth table is given below. Please use K-Map to optimize the circuit in SOP and POS forms. 0000 A B C D Y 1 1 1 0001 0 0 1 0 0 0 1 1 0100 0101 0 1 1 0 0 11 1 1000 1001 10 10 10 11 1100 1 1 0 1 11 10 1 1 1 1 HHHOOOOOHOO