As a stipulation of accepting an AFROTC ICSP scholarship for a non technical degree, cadets are required to take a language or heavy math. "For all nontechnical scholarships, cadets must successfully complete either four semesters of a single foreign language or 24 hours of math and physical science (with a minimum grade of C-) before they graduate/commission. " What does "4 semesters" mean? 12 credits? 60 credits? Does the language have to be a a critical language or can it be French or Spanish?