You should NOT pass a vehicle

1. when you cannot see clearly ✓
2. on a two-lane highway
3. when it is a motorcycle
4. in bad weather

Answer: A. when you cannot see clearly

You should not pass when you cannot see clearly.

Why this is the answer

The handbook says fog, rain or snow can be blinding. When you cannot see clearly ahead or behind, your information about the road scene is dangerously reduced, and you cannot make good driving decisions. Passing requires a clear view, so poor visibility is the condition that rules it out.

Why the other answers are wrong

• B. on a two-lane highway — The passages do not list a two-lane highway as a place where passing is always forbidden; the stated concern is whether you can see clearly.
• C. when it is a motorcycle — The passages do not say a motorcycle may never be passed; visibility, not the type of vehicle, is the stated concern.
• D. in bad weather — Bad weather matters when it actually prevents you from seeing clearly, as fog, rain or snow can do; bad weather by itself is not the rule in the passages.

Remember it

Clear view first, pass second.