Yes. If the artist makes one print of the work and destroys the file then that print is the original.

Yes. The original is the digital file the artist initially makes. Any print or copy of it is a copy, but that initial file on the artist's computer is the original.

Kind of. Because the original form is digital you can't really own it if you aren't the artist, but if you have the only print of it then it's LIKE owning the original.

You can own digital art, but the concept of 'original' vs 'copy' doesn't really exist since each instance of the work is exactly identical.

No. No matter how you slice it, you can't own the original of a digital work in the same way as traditional media.

I have a different opinion than those listed here, and I will state it in my comments.