And you may get admitted to all of them.
College A will require you to complete four semesters at their college before getting your degree.
College B will admit you- but not to your desired major. They will want to see your performance in two of the pre-requisite courses before admitting you to the major.
College C will admit you but with five semesters required, and no aid.
College D will admit you but not to the major. You have not demonstrated strong enough quant skills for a quant major.
Then what? This is the point you seem to be ignoring. Just getting admitted doesn’t get you what you want necessarily. You have a specific discipline in mind, and presumably, don’t want to spend another 5 semesters as an undergrad having already been an undergrad for 5 semesters….