What is the equivalent of 23 min. 20 sec. in arc units?

Correct Answer: Option D — 5°50'

Applying the conversion factor of 15 degrees per hour of time, 23 minutes multiplied by 15 equals 345 degrees (or 5 degrees plus 45 arcminutes). Adding the arc equivalent of 20 seconds (5 arcminutes) yields a total of 5 degrees 50 minutes.