Specialist part · #7517 · 1 pts
This blue control light informs you that the following lights are switched on:

asidelights.
blow-beam lights.
chigh-beam lights.
Why?
The blue indicator showing a headlamp with horizontal lines means the main beam headlights are on. This is the symbol visible in the photo, so C is correct. Position lights and dipped beam headlights have different symbols, making A and B incorrect.