When the vehicle in front of you signals about its intention to turn left:

1. It is prohibited to pass the vehicle from its rights side.
2. You may overtake it from the left side only.
3. It is prohibited to pass it from either side.
4. Correct answer: It is permitted to pass the vehicle on its right side.

WhyIf the car ahead is signalling a left turn, you may pass it on the right. It goes left, and you continue in your lane.