Name the metal which is used to make the filament of an electric bulb.

Options

A. Zinc
B. Nichrome
C. Copper
D. Tungsten

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of the metal used in the filament of an electric bulb.

2. **Identifying the Filament's Function**: The filament is a crucial part of the electric bulb. When electric current passes through it, the filament heats up and emits light.

3. **Recognizing the Material**: The material used for the filament must have specific properties. It should have a high melting point so that it does not melt when heated, and it should have high resistance to generate heat effectively.

4. **Determining the Correct Metal**: The metal that meets these criteria is Tungsten. Tungsten has a high melting point and high resistance, making it ideal for use in light bulb filaments.

5. **Conclusion**: Therefore, the answer to the question is Tungsten.

**Final Answer**: Tungsten

---