Determine the distance from LAT 23°24'S, LONG 13°54'E to LAT 23°24'S, LONG 42°48'W, by parallel sailing.

Correct Answer: Option D — 3122.2 miles

Parallel sailing formula calculates departure (distance) as the difference of longitude (DLo) in minutes multiplied by the cosine of the latitude: Distance = DLo * cos(Lat). Given LAT 23°24'S and a DLo of 28°54', the resulting true distance along the parallel is 3122.2 miles.