Really urgent supplement question

I just realized that when I was writing my supplement, everything I wrote about was the School of Arts and Sciences. From what I understand, the SAS is overarching over undergrad and grad school and includes CAS. Is this true? But in the supplement wording, it says “specific undergraduate school.” I got confused because I saw the word school so I did School of arts at sciences. Am I screwed? There’s like about a week left for the app omg…
Thanks guys

It isn’t a big deal but change it to CAS, the undergraduate part of SAS.