For me, this is a "Translate this sentence • The writer " exercise with the following words to choose from.
I picked "La scrittrice", and it is a correct answer.
However, the translation in the comments section is "Lo scrittore".
Perhaps DL is trying to show its e-learners that "Lo scrittore" and "La scrittrice" means "The writer".
If the right tiles are not in the word bank, then if you're on a mobile device, try rotating the screen to see if it populates with more tiles. You can always take a screen shot and submit a bug report.
21/08-2020. I got the version of this where I had to pick the correct Italian words out at the bottom. I knew the correct article was "LO scrittore", but the only article on the list was "La", so I had to choose that. It accepted it as being a typo, but clearly the problem is that "Lo" should obviously be on the list. I saw no "Report" sub-option for this problem, so I'm writing it here.
What was available? If you needed an article for "scrittrice", that would be "la". If you did need it for "scrittore", that's a technical error. If that happens again, take a screen shot and file a bug report. If you're using a mobile device, you can also try rotating the screen to see if more tiles become available.