What are you required to do according to the following traffic signs?

- Correct answer: Turn leftt. Turn after the sign.
- Drive left. Turn after the sign. A yellow arrow shows the direction of driving for restricted vehicles only.
- Drive left. Turn after the sign.. A yellow arrow shows the direction of driving for private passenger cars only.
- Drive right. Turn before the sign.
Why this is the answer
The correct answer in the official bank: Turn leftt. Turn after the sign.
A round blue sign is a mandatory instruction for all drivers. The white arrow first goes straight and only then bends left, so you continue past the sign and turn left after it. The sign shown has a plain white arrow and applies to all vehicles, so the options about a yellow arrow for certain vehicles add conditions that are not part of it.