Question 101 in the bank

In the following illustration you can see a wide road. Which of the numbers within the illustration marks a lane?

Overhead photo of a road with two carriageways, solid and dashed white lines, yellow side lines, two cars, and horizontal arrows numbered 1 to 8 of various widths.
  1. 3
  2. 4
  3. Correct answer: 6
  4. 7

Why this is the answer

The correct answer in the official bank: 6

A lane is a strip along the roadway wide enough for a single line of vehicles. Number 6 spans exactly the width between the left edge line and the dashed lane divider, so it marks one lane. Number 4 covers the separation area between the carriageways, and number 7 covers the shoulder beyond the yellow line, so neither is a lane.

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