What should I sing for All-Nationals?

I am trying out for the ACDA National Honor Choir, and I am required to sing an aria, art song, or a folk song (Pop, Gospel, and Contemporary worship pieces are not acceptable and will result in disqualification). I am a Tenor II, and I have made the All-Region choir, which I assume I'm a pretty good singer. ... show more I am trying out for the ACDA National Honor Choir, and I am required to sing an aria, art song, or a folk song (Pop, Gospel, and Contemporary worship pieces are not acceptable and will result in disqualification). I am a Tenor II, and I have made the All-Region choir, which I assume I'm a pretty good singer. What would you suggest me sing for the audition.

My range is from C3 to Ab5, so anything in that range is good. Thanks!
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