Question 980Navigation General

The correct answer is A) Own ship's marker. On a true motion display, the own ship's marker will appear to move across the PPI (Plan Position Indicator) scope, as the display shows the actual movement of the own ship relative to the fixed targets, such as land masses or ships at anchor. The other targets, including echoes from land masses (C) and ships at anchor (B), will appear stationary on the display, as they are fixed in relation to the own ship's movement. The other options (B and C) are incorrect because on a true motion display, the fixed targets like land masses and ships at anchor will not appear to move across the scope, as they are not changing position relative to the own ship.