3. Digital logic circuits (30 points, 10 each) A. Using logic gates, draw a circuit diagram to determine whether a given 8-bit twos complement number is equal to -1. The circuit should return 1 if the number is1, else return 0. Use the shorthand notation for multiple-bit line when drawing the circuit. Assume the 8-bits of the number are 8 inputs to your circuit. (10 points) B. Using logic gates, draw a circuit diagram to determine whether a given 8-bit twos complement number is equal to zero. The circuit should return 1 if the number is zero, else return 0. Use the shorthand notation for multiple-bit line when drawing the circuit. Assume the 8-bits of the number are 8 inputs to your circuit. (10 points) C. Using logic gates, draw a circuit diagram for comparing two 8-bit numbers. The circuit should return 1 if the numbers match, else return 0. Use the shorthand notation for multiple- bit line when drawing the circuit.(10 points)