What image appears when UV light is shined on a Norwegian passport?

Here is the question :

WHAT IMAGE APPEARS WHEN UV LIGHT IS SHINED ON A NORWEGIAN PASSPORT?

Here is the option for the question :

Crown
Eagle
Northern lights
Sailboat

The Answer:

And, the answer for the the question is :

Northern lights

Explanation:

[STC0020090]. Norway’s passport was revised in 2020, and it now includes a feature that can only be viewed under ultraviolet light: the northern lights. The amazing natural light show (also known as the aurora borealis) may usually be seen in the sky over Norway between late September and late March. The new Norwegian passport is also available in three different colors.