This question takes a little more thought to answer properly, so sit down with an counselor and brainstorm. The major you choose at a UC and some private universities could affect your admission (yes, this topic could be critically analyzed and that's why it was chosen). When one declares a major, it tells admissions officers a little bit more about the applicant and begs the question (more often than not), what has made this applicant competitive and ready for this desired field of study? This is likely a question that a counselor would help you thoughtfully answer. Much research can be done before deciding upon a major at your dream college. Do your homework and come up with an idea that makes you different. For every choice you make, there could be another question to answer, so be prepared.