When using an ARPA, what should you consider in order to evaluate the information displayed?

Correct Answer: Option A — Navigational constraints may require a target vessel to change course.

ARPA provides data based on radar tracking, but it cannot account for external factors like traffic separation schemes, narrow channels, or COLREGS requirements. A navigator must always apply professional judgment, recognizing that a target vessel may be constrained by its draft or local navigational rules, regardless of ARPA output.