I have two questions. From the App checklist: First, for reference #2, how do we know which teachers are acceptable for which options? My son's preference would be to use his Math teacher and he is applying for Marine option. Is a Math teacher OK for this option? Second, I find it extremely odd that my son's USNSCC (Sea Cadet) CO cannot be used as a reference. Or can he? Would he qualify as reference #3 as a 'coach'? If not, he can use his Varsity Football coach but I assume that his Sea Cadet CO would be a better option if allowed. These are the final two items before submitting the App. Thanks.