The following traffic sign is the only sign posted at an intersection. Is it permitted to turn left?

1. Yes, only during the day.
2. Correct answer: No.
3. Yes, only in the intersection.
4. Yes, in an intersection with traffic lights.

WhyThe sign is a blue circle with an arrow straight ahead, the mandatory sign for straight ahead only. With no other signs, you may not turn left, or right either.