Choose the correct statement:

Options

A. The electric force is attractive while gravitational force is repulsive.
B. The electric force is repulsive while gravitational force is attractive.
C. The electric force is either attractive or repulsive while gravitational force is always attractive.
D. The electric force is always repulsive while the gravitational force may be repulsive or attractive.

Explanation

To solve the question, we need to analyze the statements provided about electric and gravitational forces.

### Step-by-Step Solution:

1. **Understanding Electric Forces:**
- Electric forces arise from charged particles.
- Like charges (both positive or both negative) repel each other.
- Unlike charges (one positive and one negative) attract each other.
- Therefore, electric forces can be both attractive and repulsive.

2. **Understanding Gravitational Forces:**
- Gravitational forces arise from masses.
- Any two masses will always attract each other, regardless of their nature.
- There is no scenario in classical physics where gravitational forces can be repulsive.
- Therefore, gravitational forces are always attractive.

3. **Evaluating the Options:**
- Option A: "The electric force is attractive while gravitational force is repulsive." - Incorrect, as electric forces can be repulsive.
- Option B: "Electric force is repulsive, gravitational force is attractive." - Incorrect, as electric forces can also be attractive.
- Option C: "Electric force is neither attractive nor repulsive while gravitational force is always attractive." - Incorrect, as electric forces can be attractive or repulsive.
- Option D: "Electric force is always repulsive while the gravitational force may be repulsive or attractive." - Incorrect, as gravitational forces are always attractive.

4. **Correct Conclusion:**
- The correct statement is that the electric force can be attractive or repulsive, while the gravitational force is always attractive.
- Therefore, the correct option is **Option C**.

### Final Answer:
The correct statement is: **Electric force is either attractive or repulsive while gravitational force is always attractive.**

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