Which vehicle must have "safety shoes"?

1. AEvery motor vehicle whose permitted total weight is more than 5,000 kg, except a bus.
2. BEvery vehicle whose permitted total weight is up to 3,500 kg or less, except a bus.
3. CEvery commercial vehicle of any weight, except a bus.
4. DEvery vehicle whose permitted total weight is up to 4,000 kg or less, including a bus.

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