The goal isn't really to be a quiz, but rather just to see how susceptible people are to AI generated art. Many of the images I chose are intentionally vague, 80% of people so far got the line art sketch wrong, and that's with knowing that many of these are AI generated. The results are definitely interesting to see.
A "don't know" option would ruin the point since most people would just choose that. I want to see where people lean towards.