This sign means?

- Road curves left
- Free flow
- Hidden road
- Merging traffic ahead ✓
Answer: D. Merging traffic ahead
The sign means merging traffic ahead.
Why this is the answer
The handbook's warning-sign section lists a sign meaning "Road merges with another road — added lane to the right ahead." It also says warning signs warn of possible hazards ahead. That merging meaning points to traffic joining the road ahead, so the correct choice is merging traffic ahead.
Why the other answers are wrong
- A. Road curves left — Road curves left describes a bend warning, while the passage's merging sign is about another road joining, not a left curve.
- B. Free flow — Free flow is not given as the meaning of this sign anywhere in the passages; the sign meaning described is traffic merging.
- C. Hidden road — Hidden road is not supported by the passages; the listed warning is for a road merging with another road.
Remember it
A merge warning is about two roads joining, not about the road bending.