You depart LAT 26°03'S, LONG 10°28'E, for LAT 26°03'S, LONG 01°16'W. What are the course and distance by parallel sailing?

Correct Answer: Option D — 270°T, 632.5 miles

Parallel sailing applies when a vessel remains on a constant latitude. According to Bowditch, course is directly east or west ($270^\circ\text{T}$) and distance is calculated as $p = D\text{Lo} \cos(\text{Lat})$, resulting in $632.5$ miles westward.