Question 494 in the bank

What is the meaning of the following traffic sign?

A white circle with a thick red border and a red diagonal stripe crossing a black arrow shaped like an upside-down U, open at the bottom. The arrowhead at the left end points down. Meaning: A "u" turn at the nearest left turn is forbidden.
  1. No left turn.
  2. No U-turn to the left during night time only.
  3. Correct answer: A "u" turn at the nearest left turn is forbidden.
  4. No U-turn to the left and no left turn.

Why this is the answer

The correct answer in the official bank: A "u" turn at the nearest left turn is forbidden.

The sign forbids making the nearest U-turn to the left, that is, turning around to go the opposite way. It does not forbid an ordinary left turn, so you may turn left unless another sign forbids it. The sign itself does not limit the ban to night time.

Topic: Traffic signs. The bank marks it for these classes: Light truck (C1), Heavy truck (C), Bus (D), Motorcycle (A), Tractor (1), Private car (B).