It is permitted to make a left U-turn:
- Only from the farthest left lane in which you are permitted to drive.
- Correct answer: From a left-turn lane or from any other lane which doesn’t have a prohibiting sign.
- From every lane that is marked with left or right-turn arrows.
- From a left-turn lane only.
Why this is the answer
The correct answer in the official bank: From a left-turn lane or from any other lane which doesn’t have a prohibiting sign.
A left-turn lane also allows a U-turn, unless a sign or marking prohibits it. A U-turn is also permitted from any other lane that has no sign or marking prohibiting it. So it is not correct to say that it is permitted only from a left-turn lane. It must be done carefully, when it is safe and does not disturb traffic.