Final answer:
The STA-21 program is a Navy sponsorship program that enables enlisted sailors to become officers by providing financial assistance for their college education, making it a Scholarship program.
Step-by-step explanation:
The STA-21 program is best described by which of the following? The correct answer is A) Scholarship program. The STA-21, or Seaman to Admiral-21, program is a sponsorship program within the United States Navy that selects and advances enlisted sailors to a commissioned officer status after completing college degrees. Participants receive full tuition and books, fees coverage, and are also paid at their current enlisted pay grade. It's an opportunity for enlisted personnel to gain the education and training needed to assume leadership roles as Naval Officers.