That's the nature of a survey, man. It's not supposed to list your actual answers. It's supposed to make you think and pick something that's close. That's why they always say, "Choose the option that best fits your answer."
I don't think it is the "nature of a survey" at all to have questions that don't actually serve the stated purpose of the survey.
In this case, the creator of the survey stated their intent as "to discover how 5th edition Dungeons & Dragons Dungeon Masters prepare for and run their games." (it's at the top of the survey), and started out with a few questions that actually did allow selection of all that apply, but suddenly started guaranteeing the information gathered would be less accurate than it otherwise would by switching to mutually exclusive answers even on questions that it is not only possible, but likely, that someone would do more than one of the things answered.
But hey, if you think it is the "nature of a survey", maybe you are right and I'm just not skilled enough at picking something that is close. Why do you help me out?
For the question "How do you prefer to run combat in D&D?", which answer should I be choosing from: A) "I prefer to use abstract maps and general positioning but without a grid."; B) "I prefer to run combat with maps, miniatures, and five foot per square grids."; or C) "I prefer to run narrative "theater of the mind" combat." when the actual case is that I prefer to switch back and forth between B and C within the same session based on the details of each combat - those with terrain, objects, or numerous creatures that the players might lose track of using B, and those which are very straightforward and would take less time to play out using C than they would to set up on the table for B using C.
If you can tell me which of those choices is "closest", we can proceed on to other questions that I feel cannot succeed at the stated intent of the survey because they didn't include anything even resembling an accurate answer for me.