Is it permitted to replace the tyres on a vehicle with tyres of a different size?

1. AUnder no circumstances may the size of the vehicle's tyres be changed.
2. BIt is permitted to change only with prior approval from the Licensing Authority of the Ministry of Transport.
3. CPermitted, provided that all the vehicle's tyres are replaced with new tyres, all of the same different size desired by the driver.
4. DPermitted, if the insurance company approves the change.

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