D’s are very problematic…If you think about it, you are taking AP1, AP 2 and AP 3. MSU admitted you, thinking that, great, @NAAMRTH is taking a rigorous curriculum…But oh…NAAMRTH is not doing college level work…are they prepared for college level work? Do they not want to take the effort? Are they having some other kind of issue? They want students who can succeed…right now you are showing them you may not be capable of succeeding.
So what is the issue? Not studying? Don’t care? Depression? Senioritis? Family Issues? Health Issues? Too much partying?
If there is anything you can do to get those grades up to C’s, do it. Talk to your teacher Start reading the chapters ahead of time. Get a tutor. Form a study group. Go to teacher’s help hours. Watch on line videos. Study differently…ask good students how they study. Ask the teacher how students who do well study. Do extra problems. See if there is extra credit.