The Citadel College.?

Im a Junior in highschool, and schools over in 4 weeks. I plan on applying for the Citadel because im joining the Marine Corps after college. I saw on the Citadel college website there was a 'Corps for Cadets' program. And a "NROTC" program. Now which one should i apply for that would help me the most with the Marines to get me in shape?