The line of position determined from a sight with an observed altitude (Ho) of 88°45.0' should be __________.

Correct Answer: Option B — plotted as an arc around the GP of the body

Per Bowditch, sights with an observed altitude exceeding 87° to 88° have an extremely close Geographic Position, creating a circle of equal altitude with a small radius that cannot be accurately plotted using standard intercept methods; it must be plotted as an arc.