Graphite and __________are good conductors of electricity.

Options

A. plastic
B. wood
C. Rubber
D. Silver

Answer

To solve the question "Graphite and __________ are good conductors of electricity," we will analyze the options provided and determine which one is a good conductor of electricity.

### Step-by-Step Solution:

1. **Understanding Conductors and Insulators**:
- Conductors are materials that allow electricity to flow through them easily.
- Insulators are materials that do not allow electricity to flow through them easily.

2. **Analyzing the Options**:
- The options given are: Plastic, Wood, Rubber, and Silver.
- We need to identify which of these materials is a good conductor of electricity.

3. **Evaluating Each Option**:
- **Plastic**: Plastic is a bad conductor of electricity; it is an insulator.
- **Wood**: Wood is also a bad conductor of electricity; it is an insulator.
- **Rubber**: Rubber is another bad conductor of electricity; it is an insulator.
- **Silver**: Silver is a metal and is known to be one of the best conductors of electricity.

4. **Conclusion**:
- Since Graphite is already mentioned as a good conductor, and Silver is identified as another good conductor, the correct answer is:
- **Graphite and Silver are good conductors of electricity.**

### Final Answer:
Graphite and **Silver** are good conductors of electricity.

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