Headliner bow goes into which of 3 holes?

I removed the bows that support the headliner in my 71 Duster and kept track of which one was 1st, 2nd, 3rd, etc. What I did not notice till it was too late is that there are 3 holes in each location - not one - and I don't know which one to use. Any suggestions?

I attached a picture that shows a typical set of 3 holes.

tx,
Ken