When is it permitted to make a left U-turn in an intersection without traffic lights?

1. Only vehicles driving on more than two wheels are permitted to make the U-turn.
2. Only when the turn can be made from the right side of the road, and can be completed without stopping.
3. Only when the vehicle is directed by another person.
4. Correct answer: When no obstruction to traffic is caused, field of vision is clear and there is no prohibiting road sign.

WhyYou may make a left U-turn at an intersection without lights if you do not disturb traffic, you can see the road well and no sign prohibits it.