What are the basic firearm safety rules?

What are the basic firearm safety rules?

• A. Only fire when compelled by a supervisor.
• B. Do not touch a gun unless you plan to shoot immediately.
• C. Always leave a gun loaded and pointed at safe directions.
• D. Treat every gun as loaded; never point at anything you don't intend to shoot; keep finger off trigger until ready to shoot; know your target and what lies beyond.

Answer: (D)