If a driver cannot see clearly while reversing from a driveway, he should

  1. observe carefully and back out slowly ✓
  2. sound his horn loudly while backing out
  3. continue with his hazard lights on
  4. check mirrors and continue

Answer: A. observe carefully and back out slowly

You should observe carefully and back out slowly when you cannot see clearly while reversing from a driveway.

Why this is the answer

The pedestrian section warns that backing up needs extra care: check around the car before getting in, do a full vision check before moving, and keep checking as you reverse. It says you could easily back into a child or a family pet if you are not observing carefully. That supports backing out only after careful observation and doing it slowly when your view is poor. The passages do not give a special horn, hazard-light, or mirror-only rule for this situation.

Why the other answers are wrong

Remember it

Before you reverse, look all around the car, then keep looking as you ease back.

Official handbook: ICBC Learn to Drive Smart, Chapter 6: sharing the road – Pedestrians, p. 84

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.