Which term describes the turning error known as Undershoot North Overshoot South (UNOS)?

Which term describes the turning error known as Undershoot North Overshoot South (UNOS)?

• A. UNOS (Undershoot North, Overshoot South) describes turning errors.
• B. Variation is the angular difference between true north and magnetic north.
• C. Acceleration/deceleration errors occur only in the Southern Hemisphere.
• D. Oscillation error is a continuous swing around a heading.

Answer: (A)