Design a combinational circuit with four inputs A, B, C, and D and one output, F . F is to be equal to 1 when A = 1, provided that B = 0, or when B = 1, provided that either C or D is also equal to 1. Otherwise, the output is to be equal to 0.

1. Obtain the truth table of the circuit.

2. Simplify the output function.

3. D raw the logic diagram of the circuit, using NAND gates with a minimum number of ICs.

4. Construct the circuit and test it for proper operation by verifying the given conditions.