IV. Design a combinational logic circuit with a single output that serve as an "AUTOBUZZER CIRCUIT." This circuit should output a HIGH signal (to sound a buzzer) for each of the following conditions: a) If the driver's DOOR is open and the KEYS are in the ignition. b) If the SEATBELT is not buckled, the SEAT is occupied, and the KEYS are in the ignition. c) If the HEADLIGHTS are on and the KEYS are not in the ignition. Requirements: a. List the assignments of variables and its truth table. b. Derived the Boolean function for each output. c. Draw the equivalent 2 level-gate logic of the derived Boolean functions.