What is the meaning of the following traffic sign?

- Left curve followed by a right curve.
- Rough road.
- Drive in the center of the road.
- Correct answer: Danger of skidding.
Why this is the answer
The correct answer in the official bank: Danger of skidding.
This warning sign marks a stretch where the road surface may be slippery, especially when wet, oily or covered with gravel. Slow down in advance, keep a larger following distance, and avoid sharp braking or sudden steering. The wavy lines behind the car show skid marks, not bends in the road, so it should not be confused with a curves sign or a rough road sign.