About Lighting and reflection of the trailer: which statement is WRONG?

The red TRIANGULAR reflectors belong at the REAR; at the front are white (non-triangular) retroreflectors.

This trailer itself must always have a rear fog light.

Every trailer must have a reversing light.

White retroreflectors belong at the FRONT; at the rear are red triangular reflectors.

Explanation

Book p.232 - a reversing light (white or yellow) is required only if the permitted maximum mass exceeds 750 kg.