What is the meaning of the following traffic sign?

- U-Turn is permitted.
- Correct answer: Sharp bend to the right.
- Drive left only.
- Winding road.
Why this is the answer
The correct answer in the official bank: Sharp bend to the right.
A triangular sign with a red border is a warning sign. The curved black line on it shows that the road ahead bends sharply to the right. Slow down before the bend and stay in your lane, because in a sharp turn it is easy to lose control or drift into the opposite lane. This is not a mandatory sign like "Drive left only". A winding road is marked by a sign with several bends, not one bend.