Using gnomonic tracking chart WOXZC 5270, determine which of the following statements about a voyage from San Francisco to San Bernardino Strait (LAT 13°00'N, LONG 125°30'E) is TRUE.

Correct Answer: Option C — You will cross the Northern Hemisphere vertex at the approximate longitude of 159°W.

Under USCG National Maritime Center examination standards, the accepted correct answer is: You will cross the Northern Hemisphere vertex at the approximate longitude of 159°W..