About Lighting and reflection of the trailer: which statement is correct?
The red triangular reflectors of a trailer belong at the front.
The orange retroreflectors of a trailer belong at the front.
The white retroreflectors of a trailer belong at the rear.
This trailer itself must always have a rear fog light.
Explanation
Book p.232 - this trailer itself must always have a rear fog light. The only exception is if the TOWING vehicle itself has no fog light. The law does contain a date nuance for older heavy trailers, but the exam follows the book: treat the rear fog light as always mandatory.