A vessel heading ESE is on a course of __________.

Correct Answer: Option A — 112.5°

East-Southeast (ESE) is the point located between East (090°) and Southeast (135°). It is 22.5° clockwise from East. Adding 22.5° to 090° yields 112.5°. Understanding these compass points is critical for all mariners to ensure precise steering and effective communication of vessel orientation during watchkeeping.