I think the reason your options are confusing to somebody is this:
Is it okay to yell at your child to save their life? Absolutely. (Inherent in this option is a spectrum of situations. It's asking is there a scenario where it's okay).
Is it okay to yell at your child to save their life under the right circumstances? Yes (This is confusing because it's objectivley also part of the first response).
Normally an absolute answer would be something like, "It's okay to yell at your kids," without the requirement of a survival situation juxtaposed to those that only find it acceptable in extreme situations. Your poll doesn't allow for a differentiation between people who view yelling as a parenting tool and those that view it as last resort.
At least this is how I see it. I voted absolutely, because there are absolutely situations where yelling is acceptable. That also is just as true for the depends on the circumstances answer though. Respectfully, but it's flawed.
You are given a set of circumstances to consider in which yelling at your child could save their life (though it's possible that yelling wouldn't accomplish this); they aren't inherently acceptable scenarios (as acceptability is a matter of subjectivity) and they're not prescribed as the right circumstances, just the relevant ones. The only emergencies that are excluded from this set are emergencies where yelling could not possibly help to save the life of the child; such emergencies are paradoxical with respect to the question, so I have deemed them irrelevant for the purposes of this poll. If there were more room in the thread title and poll title, I could've mentioned that the emergencies I'm referring to are ones where yelling can actually save the life of the child, but frankly, that seems implicit in the question, so it didn't occur to me that I would need to spell that out.
As for why the poll only includes emergency/survival situations, that's simply because I thought about what Malorie did in Bird Box and wondered how many people would agree or disagree with her actions in such a scenario and built the premise of this thread from there. More specifically, I was interested in seeing if there was a significant portion of people who have more consideration for the type of emergency involved, and wondered how many people felt that the type of emergency didn't matter.
With consideration of the relevant emergencies where yelling at your child could save their life, your options to vote on if it would acceptable to do so are as follows: a categorically affirmative response, an uncertain response, a conditional response, and a categorically negative response. These options should be sufficient to cover the potential spectrum of opinions on this issue. If you answer "absolutely", you are not just saying "yes", you are saying "yes, without qualification or exception", which includes all emergencies where yelling could save the child's life. If you answer "Depends on the situation/child" you are saying, "it could be acceptable in some emergencies, and it could be unacceptable in other emergencies, so whether it is acceptable or not depends on the emergency and/or the child involved in the emergency".
If more people would read the OP, I don't think it would be that confusing. I made it pretty clear that this poll was based on what happened in Bird Box so complaining about what this thread isn't is really getting beside the point.
I do, however, appreciate your input and I can see how going into this thread and voting right away could lead to confusion.