(To which “Claremont” college are you referring?
There are 5 of them. Do you mean Claremont McKenna college?)
These are 5 rather different schools. Babson is a small business school; it would not be a good choice if you want to minor in computer science (or if you are not 100% sure you want to focus on business). Claremont McKenna is a small liberal arts college whose programs emphasize economics, government, and public affairs. It does not offer majors or minors in either business or computer science. It does offer a financial economics “sequence” and a computer science “sequence” to complement other majors. It may be possible to arrange the equivalent of a CS minor through course work at Harvey Mudd or Pomona (two of the other Claremont colleges). I don’t know if any of the 5 Claremont colleges offer business majors or minors, per se.
UPenn and Stanford are mid-sized research universities. UPenn’s Wharton School is probably the most prestigious, and possibly the best, undergraduate business school in the USA. Penn also has a respectable CS department. However, business and CS at UPenn are taught in different undergraduate divisions. You should investigate how minors in Penn’s College of Arts and Sciences or School of Engineering & Applied Science might work (or not work) for Wharton students.
Stanford has one of the most prestigious CS departments in the world. However, Stanford has no undergraduate business programs.
For you to have “near guaranteed admission” to schools as selective as Claremont McKenna or UPenn, it must mean you are a recruited athlete. In that case, by now (late October) you must have a relationship with coaches at those schools. Have you worked with them to arrange campus visits? That would be a good way to investigate their athletic and academic programs first-hand.