What is the equivalent of 2° 35' in time units?

Correct Answer: Option A — 10 min. 20 sec.

Converting arc to time uses the standard conversion where 1 degree equals 4 minutes of time and 1 minute of arc equals 4 seconds. Multiplying 2 degrees by 4 gives 8 minutes, and 35 minutes of arc multiplied by 4 gives 140 seconds (2 minutes 20 seconds), totaling 10 minutes 20 seconds.