Concept:A logic circuit handles the core operations that enable a computer to process data and control system activities.
Explanation:Logic circuits are built from logic gates such as AND, OR, and NOT.
These gates perform logical operations on input signals.
The results determine how the computer processes data.
They also send control signals that direct the flow of information in the system.
Therefore, their main role is both processing and controlling.
Answer:B. Processing and Controlling