What does a chamber indicator signify, and what should you do if you are unsure about the chamber status?

What does a chamber indicator signify, and what should you do if you are unsure about the chamber status?

• A. It indicates the firearm safety is engaged.
• B. It indicates the magazine capacity.
• C. It indicates whether a round is in the chamber; if unsure or there is no indicator, treat the weapon as loaded and verify before handling.
• D. It indicates the firearm is clean and properly lubricated.

Answer: (C)