Copying/pasting what I wrote above. Hope it helps!
FYI, for those whose undergrad institutions were on the quarter system, I called admissions this morning.
They said it's a glitch/oversight in the system, and that they'll amend it in the future. As of now, just match one class to each prereq and the Admissions office will manually match the rest on their end. They can see that we obviously fulfilled the prereqs and that we're on the quarter system, since they can see the classes on the scroll-down menu on the right side. Just wanted to let y'all know, since I delayed submission until making sure!