At night, it is hardest to see:
- Road signs.
- Pedestrians. ✓
- Other motorists.
- Street lights.
Answer: B. Pedestrians.
At night, pedestrians are the hardest to see.
Why this is the answer
The night driving chapter explains that darkness shrinks how far ahead and to the side you can see, so you have to slow down and stay within the reach of your headlights. The sharing-the-road chapter adds that people may be crossing where you cannot see them. Put those together: a person on or near the road is the thing most likely to stay hidden in the dark, which is why the manual keeps telling you to expect people you can't see yet.
Why the other answers are wrong
- A. Road signs. — The passages never single out road signs as the hardest thing to spot after dark; their focus is on people in and around the roadway.
- C. Other motorists. — Nothing in the passages names other motorists as the hardest to see at night; the warnings are about unseen people, not about other cars.
- D. Street lights. — Street lights are there to help you see, so they are not the thing the manual warns you will struggle to make out.
Remember it
At night, look for people first, not lights. A person at the edge of your headlights shows up later than anything else, so ease off the gas and give yourself room to stop.