What is the equivalent of 1°53' in time units?

Correct Answer: Option A — 7 min. 32 sec.

Time conversion follows the ratio of 1 degree equals 4 minutes and 1 minute of arc equals 4 seconds of time. Thus, 1°53' equals (1 * 4 min) + (53 * 4 sec) = 4 min + 212 sec, which simplifies to 7 minutes and 32 seconds.