Shower thoughts

This is the correct answer

I like the soda, so I put a ring on it.

I'm not questioning the answer but the logic. Topographically we can't turn our straw into a torus, we break the rules. it must be able to maintain the large scale features of a torus without stretching or squishing, which a physically real straw cannot do. In geometry our torus must follow a specific set of rules for its properties. A cylinder is not a torus. Geometrically we could turn the straw into a torus, but then it wouldn't function as a straw and thus the proof doesn't apply to the question. A rectangle is basically a flattened cylinder, and a cylinder is basically a broken torus, but a rectangle by itself is not either of the others despite being relatable. To apply the definition of a form we must follow the rules of a form, which we do not here. A human is primate but the distinction of human is important, you'd likely plan a different trip cross country with a Pan troglodytes than with a homo sapien and will find that in practice the two are distinct.

Yeah probably should have described it as a cylinder with a hole straight through it, it made sense in my head but i now realise it is a dodgy description now i think about it

No worries. I'm not trying to be an ass or come off as trying to be a know it all, just if the subject came up for debate I wanted to present those thoughts to prepare a rebuttal, or a new supporting claim to strengthen your position- but not from a position of attack upon your views. A hollow cylinder seems a fair description. The crux of the whole thing really is in how we define the straw itself.