What is the meaning of the following traffic sign?

- Stop and give right-of-way to traffic on the road that crosses ahead.
- Stop for a moment and then continue driving.
- Give right-of-way to traffic on the road that crosses ahead while road-works take place.
- Correct answer: Stop! (Hand held road sign).Stop as long as the sign is held up.
Why this is the answer
The correct answer in the official bank: Stop! (Hand held road sign).Stop as long as the sign is held up.
This is a hand-held "stop" sign, used for example at road works. As long as the sign is held up facing you, you must stop and stay where you are. The stop lasts for as long as the sign is shown, so you must not stop for a moment and then continue.