What is the meaning of the following traffic sign?

- Entry is permitted for all commercial motor vehicles that have an all up weight which exceeds the weight indicated in the sign.
- Correct answer: No entry for any vehicle that has an all up weight which exceeds the weight indicated in the sign.
- No entry only for commercial motor vehicles that have an all up weight which exceeds the weight indicated in the sign.
- No entry only for public vehicles that have a lesser all up weight than what is indicated in the sign.
Why this is the answer
The correct answer in the official bank: No entry for any vehicle that has an all up weight which exceeds the weight indicated in the sign.
The sign restricts entry by maximum permitted total weight. The restriction applies to any vehicle whose maximum permitted total weight is higher than the number on the sign, not only to commercial or public vehicles. What counts is the vehicle's maximum permitted total weight, not its actual weight at the moment of driving.