Question 1467 in the bank

Which of the following road sign prohibits making a left U-turn?

Four blue round signs, white arrows: 208 forks left-right; 207 bends left; 212 hooks back down; 209 points up with a branch hooking right, down.
  1. 212
  2. Correct answer: 209
  3. 208
  4. 207

Why this is the answer

The correct answer in the official bank: 209

A blue round sign with white arrows shows the only directions you may take. The sign with a straight arrow and an arrow curving back to the right allows only going straight or making a right U-turn, so a left U-turn is prohibited there. The sign with an arrow curving back to the left actually requires a left U-turn.

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).