What is the meaning of the sign?

1. AEntry is permitted to any commercial motor vehicle whose permitted total weight is higher than the weight recorded on the sign.
2. BEntry is forbidden only to a commercial motor vehicle whose total weight is higher than the weight recorded on the sign.
3. CEntry is forbidden only to a public vehicle whose permitted total weight is higher than the weight recorded on the sign.
4. DEntry is forbidden to any vehicle whose permitted total weight is higher than the weight recorded on the sign.

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