Some questions to consider:
Is it particular to this form (or a given body) or would a manifestation of the problem be evident on other bodies? Why?
What problems does the fit represent if this figure had arms?
Is the vast majority of what is wrong with it, fixable without darts?
If you need them, more pictures are here.
As a reminder, the answers to quizzes are usually counter-intuitive or not obvious. That’s why I pick them.
Dare I provide a hint? Okay. That would be here. Don’t look if you want to answer the question without any help.
Apologies I couldn’t put this on a human. Illustration of the difficulty is magnified with arms. I can’t get this tee on my Alvaform (which has arms).