@garbagepailcat found your tag.
ok...they all look like acceptable interview outfits.
comfortable. not TOO much, and you can wear any of these on any given day at the job.
that being said.
i am partial to both 1 and 2. the first one gives off the 'carefree' vibe.
the 2nd is obvious librarian. both are good sets.
the choice is about which you are more comfortable in.
and since you are just starting off in the 'fancy pants' arena, and if you get this gig.
might i suggest 'delicate wash' and hang on pants hanger.
that will save on those little 'pills' that happen from over washing.
and one final thing.
you are a very pretty young woman.
i really hope you get this.
good vibes to you.