External lighting devices do not work in the defined mode.
The residual height of the bus tire protection pattern is 0.8 mm.
In both cases.✓الإجابة الصحيحة
الشرح
Exterior lights must perform in their specified modes to provide correct visibility and signals. A bus tyre with only 0.8 mm of tread is also well below its class minimum, so neither defect can be treated as acceptable.