So we use a feederish HS that is considered very strong in STEM, and we regularly send a lot of STEM kids to highly ranked colleges for STEM.
What I am about to explain is not meant to freak you out, but to set a baseline for thinking about options.
So, we are one of those high schools that offers few APs because we consider them insufficiently challenging and too limiting. We do offer the Calc APs, but then we also offer up to two, or really three (there is an even/odd rotation), years worth of advanced math electives beyond Calc BC. We are on a trimester system, and most of the highly competitive science and engineering intenders take BC as juniors and then MVC, Linear Algebra, and either Diffy Q or another math elective as seniors. Then the really serious math kids (the ones who might actually get into MIT and such as Math intenders) take BC no later than sophomore year, and two+ years of math beyond that.
OK, so this is pretty crazy to be available all through our own Math department, and obviously not everyone going to these colleges has that sort of thing available at their secondary school. Nonetheless, we are hardly alone, and I do think this sort of thing contributes to secondary schools like our being overrepresented proportionally at such colleges.
So frankly, Option A seems like the only one really competitive with what just our ānormalā top science and engineering kids do, and even then not necessarily competitive with what our really serious math kids do. I do wonder if there are ways around this problem at the other optionsālike could you do an ad hoc program at a local college? Same in fact for if you wanted to do one more year of advanced math at Option A.
But holding that asideāyes, to be frank, I think it can be an advantage to have something like Option A available. Not necessarily decisive, but it is just going to make it easier to show you are really a math outlier, beyond what the SAT/ACT and APs can show.
But if the other options would be a lot better in other ways, then I would aggressively explore college course options even if they are not part of the normal curriculum plan.