Is it permitted to park a vehicle carrying a dangerous material whose total weight is more than 3,500 kg on an urban road?

1. APermitted, but only at a distance greater than 400 metres from a public building and from a residential building.
2. BPermitted, only when the tanks are empty.
3. CIt is entirely forbidden to park such a vehicle on an urban road.
4. DPermitted, provided that no one smokes near it.

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