The upper vertex of a great circle track is in LONG 156°00'E. Sailing eastward, the great circle track will cross the equator in LONG __________.

Correct Answer: Option B — 114°00'W

The vertex of a great circle is situated 90 degrees of longitude away from its equatorial crossing. Moving eastward from a 156°E vertex requires adding 90°, yielding 246° total, which normalizes to 114°W across the 180th meridian.