On 12 December your 1830 ZT DR position is LAT 24°16.0' S, LONG 41°18.0' W. You are on course 235°T at a speed of 16.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1930 running fix.

Correct Answer: Option A — LAT 24°16.9'S, LONG 41°18.2'W

Advancing multi-body sights over a one-hour run interval from 1830 to 1930 ZT uses dead reckoning increments of course 235°T at 16 knots. Intersecting the updated intercept lines yields the precise running fix coordinates of LAT 24°16.9'S, LONG 41°18.2'W in accordance with standard celestial navigation practices.