All those things. And more.
And totally school dependent. There’s no hard and fast.
Sometimes it’s one AO and sometimes more than one.
Sometimes there’s a GPA minimum/auto or test minimum auto or combined scoring and sometimes they look beyond.
Some fill up early or mostly fill up early and crumbs are left for later. Others, you have an equal chance right up to the end (although maybe not an equal chance for merit $$ or special programs).
Totally school dependent.