What is the meaning of the following traffic sign?

- Narrow bridge ahead.
- Traffic congestion ahead.
- Correct answer: Road narrows from the right.
- Number of lanes is decreasing.
Why this is the answer
The correct answer in the official bank: Road narrows from the right.
The sign warns that the road narrows from the right: the left line is straight and the right line slants inward, so the road is narrower on the right side. Slow down, stay in your lane and adjust your driving to the narrow road. It does not mean traffic congestion, a decrease in the number of lanes, or a narrow bridge.