I recently received an Army ROTC scholarship to my preferred college, and I'm now waiting to hear if I received an NROTC MO scholarship. I have to accept or decline the Army scholarship by March 6th, but I received an email saying results of the Marine Corps board will not be released for another 30-45 days. I would prefer to accept the Marine scholarship, but I don't want to give up the Army scholarship and then not receive the Marine scholarship. Am I able to accept the Army scholarship now, and reject it later if I change my mind or receive a Marine scholarship? If not, do I just decide whether it is worth it or not to risk getting no scholarship at all?