If the current flow in the circuit, then the circuit is a ?

Options

A. Open Circuit
B. Closed Circuit
C. None of A and B
D. Both A and B

Explanation

To solve the question "If the current flows in the circuit, then the circuit is a?", we need to analyze the definitions of the types of circuits.

### Step-by-Step Solution:

1. **Understanding Circuit Types**:
- A circuit can be classified as either an **open circuit** or a **closed circuit**.
- An **open circuit** is one where the path for current flow is incomplete. This means that there is a break in the circuit, and no current can flow through it.
- A **closed circuit** is one where the path for current flow is complete. In this case, all components are connected properly, allowing current to flow through the circuit.

2. **Current Flow**:
- For current to flow in a circuit, the circuit must be closed. This means that all components, such as resistors, bulbs, and power sources, must be connected in a continuous loop without any breaks.

3. **Conclusion**:
- Since the question states that "current flows in the circuit," we can conclude that the circuit must be a closed circuit. Therefore, the correct answer to the question is **closed circuit**.

### Final Answer:
The circuit is a **closed circuit**.