Which statement correctly describes abbreviation use on first use and thereafter?

• A. Use "U.S." on first use; then "the U.S." or "U.S." thereafter; remain consistent.
• B. Use "U.S." on first use only; never again.
• C. Use "U.S." on first use; then "the U.S." or "U.S." thereafter; remain consistent.
• D. Use "the U.S." on first use; then "U.S." thereafter; remain consistent.

Answer: (C)