You can see the questionnaire here. I believe you’re thinking of question 7, which is “Did you, or someone close to you, participate in any of the demonstrations or marches against police brutality that took place iin Minneapolis after George Floyd’s death?” So your recollection was pretty solid.
The photo in question was neither a George Floyd rally, nor in Minneapolis. And nothing on the rest of the questionnaire says anything about BLM.
So, what exactly is the lie here, split?