I had a schedule very similar to your daughters. Took AP Calc BC junior year. Found it very easy. Senior year rather than take our schools multi class in conjunction with the local cc I took AP stats. AP stats was a joke but also was really nice to take. I ended up at a top engineering school that has an 11% acceptance rate. Schools really only expect up to AP Calc and you won’t be disadvantaged not taking anything higher though it doesn’t hurt.