Any defect found on a school bus must be

  1. fixed within 48 hours.
  2. fixed within the week.
  3. fixed within the month.
  4. fixed before passengers board it. ✓

Answer: D. fixed before passengers board it.

Any defect found on a school bus must be fixed before passengers board it.

Why this is the answer

The handbook says never transport passengers on a school bus that is defective in any way, and you cannot operate an unfit school bus until the defect is fixed. It also says your first responsibility is keeping passengers safe. That makes the timing before passengers board, not a waiting period measured in hours, weeks, or months. The passage does not set a repair deadline; it sets a no-passengers-until-fixed rule.

Why the other answers are wrong

Remember it

Think: defect found, passengers stay off—fix it first.

Official handbook: ICBC Driving Commercial Vehicles, 6 Skills for driving buses, taxis, limousines and ride-hailing vehicles – Operating a school bus, p. 127

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.