Good conductance of electricity is the characteristic of a _________.

Options

A. metal
B. non-metal
C. metalloid
D. solid substance

Explanation

To solve the question "Good conductance of electricity is the characteristic of a _________", we will analyze the options provided and determine which one is correct based on the properties of different types of materials.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which type of material is characterized by good conductance of electricity.

2. **Review the Options**:
- **Option 1: Metal**
- **Option 2: Non-metal**
- **Option 3: Metalloid**
- **Option 4: Storage substance**

3. **Analyze Each Option**:
- **Metals**: Metals are known for their ability to conduct electricity well. This is because they have free electrons that can move easily through the material, allowing electricity to flow.
- **Non-metals**: Non-metals generally do not conduct electricity well. They lack free electrons, making them poor conductors.
- **Metalloids**: Metalloids have properties that are intermediate between metals and non-metals. While some metalloids can conduct electricity, they are not as efficient as metals.
- **Storage substance**: This term is vague and does not specifically refer to a category of materials known for conducting electricity.

4. **Identify the Best Option**: Given the analysis, metals are the best option as they are characterized by good conductance of electricity due to their free-moving electrons.

5. **Conclusion**: Therefore, the correct answer is **Metal**.

### Final Answer:
Good conductance of electricity is the characteristic of a **Metal**.