Question 1734Navigation General

The correct answer is B) 67°30'W. The dividing meridian between zone descriptions +4 and +5 is 67°30'W, as per the International Time Zone system. Zone +4 covers longitudes between 52°30'W and 67°30'W, while Zone +5 covers longitudes between 67°30'W and 82°30'W. Therefore, the meridian at 67°30'W marks the boundary between these two time zones. The other options are incorrect because: A) 67°30'E is the dividing meridian for a different set of time zones. C) 90°00'W is not the dividing meridian between +4 and +5 zones. D) 75°00'E is also the dividing meridian for a different set of time zones.