What is the meaning of the following traffic sign?

- No overtaking or passing of a restricted vehicle only.
- Correct answer: No overtaking or passing of a motor vehicle with more than 2 wheels.
- No overtaking or bypassing of a public vehicle only.
- No overtaking or passing of a non-motor vehicle with more than six wheels.
Why this is the answer
The correct answer in the official bank: No overtaking or passing of a motor vehicle with more than 2 wheels.
This sign, a red ring with two cars inside, bans overtaking or passing any motor vehicle with more than two wheels, such as cars, commercial vehicles and buses. It is not limited to public or restricted vehicles only. Two-wheeled vehicles, such as motorcycles or bicycles, may still be overtaken when it is safe to do so.