Electric current can flow through

Options

A. air
B. human body
C. both (a) and (b)
D. neither (a) nor (b)

Explanation

**Step-by-Step Solution:**

1. **Understanding Electric Current**: Electric current is the flow of electric charge, typically through a conductor.

2. **Identifying Conductors and Insulators**:
- Conductors are materials that allow electric current to flow through them easily. Examples include metals like copper and aluminum.
- Insulators are materials that do not allow electric current to flow through them. Examples include rubber, glass, and air.

3. **Analyzing the Options**:
- The first option is **air**. Air is generally considered an insulator because it does not allow electric current to pass through it under normal conditions.
- The second option is the **human body**. The human body contains a significant amount of water and electrolytes, which makes it a good conductor of electricity.

4. **Conclusion**: Since electric current can flow through conductors but not through insulators, we can conclude that:
- Electric current cannot flow through air (insulator).
- Electric current can flow through the human body (conductor).

5. **Final Answer**: Therefore, the correct answer is that electric current can flow through the **human body**.

---