0. International Date Line passes through
The International Date Line roughly follows the 180° meridian in the Pacific Ocean but deviates around islands.
A. 0° Greenwich – Incorrect. This is the Prime Meridian.
B. 180° Greenwich – Correct. The IDL generally follows this longitude.
C. 900 Greenwich – Incorrect. 90° is a latitude, not relevant here.
D. 2700 Greenwich – Incorrect. 270° does not exist on the longitude scale in this way.