Ok, sure, she did not read the instructions. But what is the problem of guessing black? Obviously, if they are asking you to guess, that must mean there is some level of uncertainty regarding the child’s colour. Humans do not come in many different shades but black is surely one of them. It would have been really weird, for instance, if someone were to guess blue

Someone told me. Oh, wait… Sorry, I didn’t mean to suggest I know it from personal experience. I am a polite boy and I always ask about other people’s units.

I think they mean 23 days. Never assume you know the units. It can lead to a lot of trouble. Ask me how I know.