Describe the difference between semi-automatic and fully automatic fire modes and give an example of when each would be used.

• A. Semi-auto fires multiple rounds per trigger pull; full-auto fires one round.
• B. Semi-auto fires one round per trigger pull; full-auto fires continuously while the trigger is held.
• C. Semi-auto uses bursts; full-auto uses single shots.
• D. Semi-auto is illegal.

Answer: (B)