CTI First Principles: Threat actors and attribution Q9

In doing all of these questions most of them are fine. Q9 isn't accepting any form of answer I input. There is nothing definitive on the PDF that gives an exact quote-able answer and anything that would logically be the answer comes up as incorrect, even asking the AI tool and all the advice it gives is no good as still returns as incorrect, ironically the tool even admitted to the questions being unfortunately specific in the answers and couldnt get it correct itself. Is this a bug or just really poor question design that expects an open ended answer that you just have to guess is the correct variation of the truth? I feel the same focus on a lot of questions in other modules isn't on getting the correct answer, but answering correctly which leads to a lot of frustration and a massive waste of time.