Here, she’s humanities. That’s her place to shine. Iced with AB and an AP science. I suspect, from other questions, that OP doesn’t have a grasp on what will define her D’s app or not. That’s a risk, the bigger risk. A lackluster full app/supp.
Yes, MD helps. But adcoms will look at what the applicant did, not whether she mirrors a highly competitive stem peer.
We dont know anything about the hs or her stats, whether solid ECs are there, the intelligence of this GC. We dont know what other humanities wannabes take or how she places, among them.