In accordance with Newton’s third law of motion -

Options

A. Action and reaction never balance each other
B. For appearance of action and reaction, physical contact is not necessary
C. This law is applicable whether the bodies are at rest or they are in motion
D. All of these

Answer

### Step-by-Step Solution:

1. **Understanding Newton's Third Law of Motion**:
- Newton's third law states that for every action, there is an equal and opposite reaction. This means that forces always come in pairs; if one body exerts a force on another body, the second body exerts a force of equal magnitude but in the opposite direction on the first body.

2. **Analyzing the First Statement**:
- The first statement claims that action and reaction forces never balance each other. This is true because action and reaction forces act on different bodies. For example, if body A exerts a force on body B, body B exerts an equal and opposite force on body A. Since these forces act on different bodies, they do not cancel each other out.

3. **Examining the Second Statement**:
- The second statement suggests that physical contact is not necessary for action and reaction forces to occur. This is also true. Action and reaction forces can occur even at a distance, such as in the case of gravitational or electrostatic forces. For instance, two charged particles can exert forces on each other without being in physical contact.

4. **Evaluating the Third Statement**:
- The third statement indicates that Newton's third law is applicable whether the bodies are at rest or in motion. This is correct. The law holds true regardless of the state of motion of the bodies involved. Whether they are stationary or moving, the action-reaction pairs remain valid.

5. **Conclusion**:
- All the statements provided in the question regarding Newton's third law of motion are correct. The law applies to both contact and non-contact forces and is valid for bodies at rest and in motion.