As a human, I found your prompt confusing enough that I had to read it over a couple of times. I associate the letters 'A', 'B', and 'C' with alphabetical order strongly enough that swapping the order is a bit difficult. I can do it of course, but if I was tired and/or not paying attention... well, it's a mistake a human could make.
I also find it notable that when you asked for more detail, the AI was correct up until the last sentence.
I also find it notable that when you asked for more detail, the AI was correct up until the last sentence.