What is the equivalent of 0°48' in time units?

Correct Answer: Option D — 3 min. 12 sec.

Arc-to-time conversion applies the standard rate of 4 minutes of time per 1 degree of arc, and 4 seconds of time per 1 minute of arc. Multiplying 48 minutes of arc by 4 seconds yields 192 seconds, which equals 3 minutes and 12 seconds.