Priority, junctions & roundabouts

You approach a turbo roundabout from the side road. The approach has two lanes: the left one has roundabout arrows for straight on and left, the right one only a right-turn arrow. You are already between the solid lines in the right-hand lane, but you want to go straight on. What do you do?

I enter the roundabout and move to the inner lane there
I go straight on; the right-hand lane is meant for straight on too
I turn right, as the arrow on my lane shows, and make a detour

Explanation

The arrow on your approach lane is mandatory. From the side road of a turbo roundabout the right-hand lane is for turning right only: if you are in it, you must turn right.

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