The question asks for the truth table of a given digital circuit, but the actual circuit diagram is missing from the prompt.

Because of that, the truth table cannot be derived from first principles: in digital electronics, the output depends entirely on how the gates are connected.

1. What is needed to solve

To determine the truth table, we must know:

1. The input variables
2. The gates used (AND, OR, NOT, NAND, NOR, XOR, etc.)
3. The exact interconnection of those gates

Since none of this is visible here, the problem is incomplete.

2. About the options

The options are also shown as blank:

• A:
• B:
• C:
• D:

So even option-wise verification is not possible from the given text alone.

3. Comparison with stored answer

The stored correct answer is given as C, but without the circuit or the option contents, I cannot independently verify whether C is correct.

Hence, I do not have enough information to derive the answer rigorously.

4. Conclusion

Please provide the digital circuit diagram (or a clear description of the gates and their connections), and I can then compute the full truth table step-by-step and verify whether option C is correct.