Priority, junctions & roundabouts

At a junction with a traffic light in Gulpen, the light changes from green to amber to red while a long row of vehicles with a blue flag at the front and a green flag at the back is still crossing the junction. What is correct?

It doesn't matter whether it's a colonne or procession, both must now stop where they are
This must be a funeral procession, since it stops mid-junction at red
This is a military colonne: it was allowed to proceed on green and may continue now, mid-junction

Explanation

False — A military colonne that entered on green may complete crossing the junction; a procession would already have stopped before the light turned red (Book p.116).

Practise this question in the app