Employment - serve in the foreign and domestic commerce and the national defense of the United States for at least five (5) years following graduation, if a graduate of U.S. Merchant Marine Academy (USMMA) as:
(A) a merchant marine officer in the U.S. flag fleet; or
(B) a commissioned officer on active duty in the armed forces or NOAA Corps; or
(C) with the Federal government in a maritime-related position that serves the national security interests; or
(D) ashore, in a U.S. maritime related industry, profession or marine science, if a determination has been made that no afloat positions are available; and