A lightning conductor is a device which transfers :

Options

A. electric energy
B. light energy
C. solar energy
D. photoelectric energy

Answer

### Step-by-Step Solution:

1. **Understanding the Function of a Lightning Conductor**:
- A lightning conductor is a safety device designed to protect buildings from lightning strikes. It is typically installed on the roofs of structures.

2. **Mechanism of Action**:
- When lightning strikes, it generates a large amount of electrical energy. The lightning conductor captures this electrical energy.

3. **Pathway for Electrical Energy**:
- The lightning conductor is connected to a wire that leads down to a copper plate buried in the ground. This setup provides a safe pathway for the electrical energy generated by the lightning.

4. **Transfer of Energy**:
- The electrical energy from the lightning strike flows through the conductor and into the ground via the copper plate. This process prevents the electrical energy from affecting the building itself.

5. **Conclusion**:
- Since the primary function of a lightning conductor is to transfer the electrical energy from a lightning strike directly to the earth, the correct answer to the question is **Option 1: electrical energy**.