This one feels a little bit more like logic games, where we are often asked each of the following could be true except, and we know to convert that into four of them could be true, one of them must be false. There's a software version of this that's sort of like the difference between must be true and most supported. Instead of flat out saying must be false, they'll just say it's the least compatible. But when Elsaid uses the term incompatible or incoherent, it means contradictory. So the least compatible means the most contradictory. Again, this question stem is referring to the paragraph as statements, which tells us we'll be reading facts and information, not an argument.